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Lesson 1 - Support and Movement in Living Organisms
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Curriculum and course: Biology
Curriculum and course: Biology
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Lesson 1 - Support and Movement in Living Organisms
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Lesson 1 – Support and Movement in Living Organisms — Picture questions (exam style)
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1.
The figure shows the human vertebral column (33 vertebrae) divided into coloured regions. Which option is correct?
region X: cervical, 7 vertebrae, pairs of true ribs = 7
region X: cervical, 7 vertebrae, pairs of true ribs = 2
region X: sacral (fused), 5 vertebrae, pairs of true ribs = 2
region X: thoracic, 12 vertebrae, pairs of true ribs = 3
2.
Three plant cells with sap concentration 0.5 M were placed in 0.1, 0.2 and 1.0 M solutions respectively (figure). Which option is correct?
cell 1: turgid — supports the plant, no water movement
cell 1: turgid — supports the plant, water enters the cell
cell 1: plasmolysed — the plant wilts, water leaves the cell
cell 1: plasmolysed — the plant wilts, no water movement
3.
The figure shows a sarcomere of 3.2 µm with A band 1.6 µm and H zone 0.6 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1 µm, A band = 1.3 µm
H zone after contraction = 0.45 µm, I band after contraction = 2.6 µm, A band = 1.3 µm
H zone after contraction = 0.3 µm, I band after contraction = 1.3 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.9 µm, I band after contraction = 1 µm, A band = 1.3 µm
4.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 80 ms, latent period = 0 ms
contraction period = 50 ms, whole twitch = 80 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 80 ms, latent period = 0 ms
5.
A seedling root was placed as shown (horizontal, in the dark). Which option is correct?
auxin collects on the lower side, stem bends downward
auxin collects on the lower side, no bending
auxin collects on the lower side, root bends downward
auxin collects on the lower side, root bends upward
6.
Three plant cells with sap concentration 0.5 M were placed in 0.05, 0.6 and 1.0 M solutions respectively (figure). Which option is correct?
cell 1: vacuole unchanged, no water movement
cell 1: turgid — supports the plant, water enters the cell
cell 1: plasmolysed — the plant wilts, water leaves the cell
cell 1: vacuole unchanged, water leaves the cell
7.
The figure shows a sarcomere of 2.4 µm with A band 1.5 µm and H zone 0.5 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.1 µm, I band after contraction = 0.5 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 0.9 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.5 µm, I band after contraction = 0.1 µm, A band = 1.1 µm
H zone after contraction = 0.5 µm, I band after contraction = 1.9 µm, A band = 1.1 µm
8.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 40 ms, whole twitch = 90 ms, latent period = 50 ms
contraction period = 60 ms, whole twitch = 90 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 5 ms
9.
The figure shows the human vertebral column (33 vertebrae) divided into coloured regions. Which option is correct?
region X: coccygeal (fused), 4 vertebrae, pairs of false ribs = 3
region X: coccygeal (fused), 6 vertebrae, pairs of false ribs = 3
region X: thoracic, 12 vertebrae, pairs of false ribs = 7
region X: coccygeal (fused), 6 vertebrae, pairs of false ribs = 7
10.
Three plant cells with sap concentration 0.3 M were placed in 0.05, 0.6 and 1.0 M solutions respectively (figure). Which option is correct?
cell 3: plasmolysed — the plant wilts, water leaves the cell
cell 3: plasmolysed — the plant wilts, water enters the cell
cell 3: vacuole unchanged, no water movement
cell 3: turgid — supports the plant, water leaves the cell
11.
The figure shows a sarcomere of 2.6 µm with A band 1.6 µm and H zone 0.6 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 0.8 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.4 µm, I band after contraction = 0.8 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 1 µm, A band = 1.4 µm
H zone after contraction = 0.5 µm, I band after contraction = 0.6 µm, A band = 1.4 µm
12.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 105 ms, latent period = 5 ms
contraction period = 55 ms, whole twitch = 105 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 5 ms
contraction period = 50 ms, whole twitch = 105 ms, latent period = 10 ms
13.
Three plant cells with sap concentration 0.5 M were placed in 0.05, 0.1 and 0.6 M solutions respectively (figure). Which option is correct?
cell 1: vacuole unchanged, water enters the cell
cell 1: plasmolysed — the plant wilts, water leaves the cell
cell 1: vacuole unchanged, no water movement
cell 1: turgid — supports the plant, water enters the cell
14.
The figure shows a sarcomere of 2.6 µm with A band 1.6 µm and H zone 0.5 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.3 µm, I band after contraction = 0.2 µm, A band = 1.2 µm
H zone after contraction = 0.3 µm, I band after contraction = 1 µm, A band = 1.2 µm
H zone after contraction = 0.1 µm, I band after contraction = 0.6 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 2.1 µm, A band = 1.6 µm (unchanged)
15.
The figure shows a sarcomere of 3.0 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.4 µm, I band after contraction = 1 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 2.2 µm, A band = 1.2 µm
H zone after contraction = 0.6 µm, I band after contraction = 0.6 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 1.4 µm, A band = 1.2 µm
16.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 60 ms, whole twitch = 115 ms, latent period = 15 ms
contraction period = 40 ms, whole twitch = 115 ms, latent period = 15 ms
contraction period = 60 ms, whole twitch = 130 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 105 ms, latent period = 15 ms
17.
A seedling stem was placed as shown (unilateral light). Which option is correct?
auxin collects on the right (lit) side, root bends upward
auxin spreads evenly, root bends upward
auxin spreads evenly, stem bends to the left
auxin collects on the left (shaded) side, stem bends to the right
18.
Three plant cells with sap concentration 0.3 M were placed in 0.6, 0.8 and 1.0 M solutions respectively (figure). Which option is correct?
cell 1: vacuole unchanged, water leaves the cell
cell 1: plasmolysed — the plant wilts, water enters the cell
cell 1: turgid — supports the plant, water leaves the cell
cell 1: plasmolysed — the plant wilts, water leaves the cell
19.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 45 ms, whole twitch = 100 ms, latent period = 0 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 95 ms, latent period = 5 ms
contraction period = 40 ms, whole twitch = 95 ms, latent period = 10 ms
20.
The figure shows a sarcomere of 2.6 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 1.2 µm, I band after contraction = 1.8 µm, A band = 1.2 µm
H zone after contraction = 0.4 µm, I band after contraction = 0.6 µm, A band = 1.2 µm
H zone after contraction = 0.8 µm, I band after contraction = 1 µm, A band = 1.2 µm
H zone after contraction = 0.4 µm, I band after contraction = 0.6 µm, A band = 1.6 µm (unchanged)
21.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 105 ms, latent period = 15 ms
contraction period = 65 ms, whole twitch = 120 ms, latent period = 0 ms
contraction period = 60 ms, whole twitch = 105 ms, latent period = 0 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 15 ms
22.
A seedling stem was placed as shown (unilateral light). Which option is correct?
auxin collects on the left (lit) side, stem bends to the right
auxin collects on the right (shaded) side, stem bends to the left
auxin collects on the upper side, no bending
auxin collects on the left (lit) side, root bends upward
23.
The figure shows a sarcomere of 3.0 µm with A band 1.5 µm and H zone 0.4 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0 µm, I band after contraction = 1.1 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.2 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.2 µm, I band after contraction = 2.6 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0 µm, I band after contraction = 2.6 µm, A band = 1.1 µm
24.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 30 ms, whole twitch = 105 ms, latent period = 15 ms
contraction period = 45 ms, whole twitch = 90 ms, latent period = 20 ms
contraction period = 30 ms, whole twitch = 90 ms, latent period = 0 ms
contraction period = 60 ms, whole twitch = 90 ms, latent period = 30 ms
25.
The figure shows a sarcomere of 2.6 µm with A band 1.5 µm and H zone 0.6 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1.1 µm, A band = 1.2 µm
H zone after contraction = 0.6 µm, I band after contraction = 0.5 µm, A band = 1.2 µm
H zone after contraction = 0.3 µm, I band after contraction = 0.8 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.45 µm, I band after contraction = 2 µm, A band = 1.5 µm (unchanged)
26.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 45 ms, whole twitch = 85 ms, latent period = 15 ms
contraction period = 45 ms, whole twitch = 70 ms, latent period = 20 ms
contraction period = 30 ms, whole twitch = 85 ms, latent period = 15 ms
contraction period = 45 ms, whole twitch = 100 ms, latent period = 20 ms
27.
The figure shows the human vertebral column (33 vertebrae) divided into coloured regions. Which option is correct?
region X: lumbar, 5 vertebrae, pairs of true ribs = 7
region X: lumbar, 7 vertebrae, pairs of true ribs = 7
region X: cervical, 7 vertebrae, pairs of true ribs = 2
region X: lumbar, 5 vertebrae, pairs of true ribs = 2
28.
The figure shows a sarcomere of 2.8 µm with A band 1.6 µm and H zone 0.5 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.1 µm, I band after contraction = 0.8 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.9 µm, I band after contraction = 0.4 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 0.8 µm, A band = 1.2 µm
H zone after contraction = 0.1 µm, I band after contraction = 2.3 µm, A band = 1.6 µm (unchanged)
29.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 115 ms, latent period = 15 ms
contraction period = 60 ms, whole twitch = 115 ms, latent period = 15 ms
contraction period = 60 ms, whole twitch = 130 ms, latent period = 15 ms
contraction period = 50 ms, whole twitch = 115 ms, latent period = 0 ms
30.
The figure shows a sarcomere of 2.6 µm with A band 1.5 µm and H zone 0.8 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1.1 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 0.9 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.7 µm, I band after contraction = 1.1 µm, A band = 1.3 µm
H zone after contraction = 0.6 µm, I band after contraction = 0.9 µm, A band = 1.5 µm (unchanged)
31.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 115 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 115 ms, latent period = 5 ms
contraction period = 50 ms, whole twitch = 110 ms, latent period = 10 ms
contraction period = 60 ms, whole twitch = 115 ms, latent period = 5 ms
32.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 30 ms, whole twitch = 95 ms, latent period = 30 ms
contraction period = 30 ms, whole twitch = 95 ms, latent period = 5 ms
contraction period = 40 ms, whole twitch = 95 ms, latent period = 30 ms
contraction period = 35 ms, whole twitch = 95 ms, latent period = 5 ms
33.
The figure shows a sarcomere of 3.0 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.8 µm, I band after contraction = 1 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 1.2 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 1.2 µm, A band = 1.4 µm
H zone after contraction = 1 µm, I band after contraction = 1.2 µm, A band = 1.4 µm
34.
The figure shows a sarcomere of 3.2 µm with A band 1.5 µm and H zone 0.5 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.5 µm, I band after contraction = 1.5 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.3 µm, I band after contraction = 1.5 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.5 µm, I band after contraction = 2.7 µm, A band = 1.3 µm
H zone after contraction = 0.4 µm, I band after contraction = 2.7 µm, A band = 1.3 µm
35.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 40 ms, whole twitch = 105 ms, latent period = 5 ms
contraction period = 45 ms, whole twitch = 110 ms, latent period = 0 ms
contraction period = 50 ms, whole twitch = 100 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 100 ms, latent period = 5 ms
36.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 60 ms, whole twitch = 110 ms, latent period = 10 ms
contraction period = 50 ms, whole twitch = 100 ms, latent period = 10 ms
contraction period = 50 ms, whole twitch = 110 ms, latent period = 10 ms
contraction period = 60 ms, whole twitch = 120 ms, latent period = 50 ms
37.
The figure shows a sarcomere of 2.6 µm with A band 1.5 µm and H zone 0.4 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0 µm, I band after contraction = 0.3 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0 µm, I band after contraction = 2.2 µm, A band = 1.1 µm
38.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 30 ms, whole twitch = 90 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 100 ms, latent period = 15 ms
contraction period = 40 ms, whole twitch = 80 ms, latent period = 0 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 10 ms
39.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 110 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 15 ms
contraction period = 40 ms, whole twitch = 100 ms, latent period = 10 ms
contraction period = 50 ms, whole twitch = 100 ms, latent period = 10 ms
40.
Three plant cells with sap concentration 0.5 M were placed in 0.6, 0.8 and 1.0 M solutions respectively (figure). Which option is correct?
cell 2: plasmolysed — the plant wilts, no water movement
cell 2: plasmolysed — the plant wilts, water leaves the cell
cell 2: vacuole unchanged, no water movement
cell 2: vacuole unchanged, water enters the cell
41.
The figure shows a sarcomere of 3.0 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 1.1 µm, I band after contraction = 1.1 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.65 µm, I band after contraction = 1.1 µm, A band = 1.3 µm
H zone after contraction = 0.5 µm, I band after contraction = 1.1 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.5 µm, I band after contraction = 2.2 µm, A band = 1.3 µm
42.
The figure shows a sarcomere of 2.4 µm with A band 1.6 µm and H zone 0.6 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.9 µm, I band after contraction = 0.5 µm, A band = 1.3 µm
H zone after contraction = 0.45 µm, I band after contraction = 0.8 µm, A band = 1.3 µm
H zone after contraction = 0.45 µm, I band after contraction = 0.2 µm, A band = 1.3 µm
H zone after contraction = 0.3 µm, I band after contraction = 0.5 µm, A band = 1.6 µm (unchanged)
43.
The figure shows a sarcomere of 2.4 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.8 µm, I band after contraction = 0.6 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 1.6 µm, A band = 1.4 µm
H zone after contraction = 1 µm, I band after contraction = 0.6 µm, A band = 1.4 µm
H zone after contraction = 0.6 µm, I band after contraction = 0.6 µm, A band = 1.6 µm (unchanged)
44.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 30 ms, whole twitch = 90 ms, latent period = 10 ms
contraction period = 30 ms, whole twitch = 80 ms, latent period = 15 ms
contraction period = 30 ms, whole twitch = 80 ms, latent period = 10 ms
contraction period = 30 ms, whole twitch = 70 ms, latent period = 0 ms
45.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 30 ms, whole twitch = 75 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 5 ms
contraction period = 30 ms, whole twitch = 85 ms, latent period = 5 ms
contraction period = 35 ms, whole twitch = 80 ms, latent period = 30 ms
46.
The figure shows a sarcomere of 3.2 µm with A band 1.5 µm and H zone 0.8 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1.3 µm, A band = 1.1 µm
H zone after contraction = 1.2 µm, I band after contraction = 1.7 µm, A band = 1.1 µm
H zone after contraction = 0.8 µm, I band after contraction = 1.7 µm, A band = 1.1 µm
H zone after contraction = 0.4 µm, I band after contraction = 1.3 µm, A band = 1.5 µm (unchanged)
47.
The figure shows a sarcomere of 2.6 µm with A band 1.5 µm and H zone 0.4 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.2 µm, I band after contraction = 0.9 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.4 µm, I band after contraction = 0.7 µm, A band = 1.3 µm
H zone after contraction = 0.6 µm, I band after contraction = 2.2 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.3 µm, I band after contraction = 1.1 µm, A band = 1.3 µm
48.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 45 ms, whole twitch = 95 ms, latent period = 15 ms
contraction period = 40 ms, whole twitch = 95 ms, latent period = 15 ms
contraction period = 30 ms, whole twitch = 80 ms, latent period = 15 ms
contraction period = 30 ms, whole twitch = 95 ms, latent period = 15 ms
49.
The figure shows a sarcomere of 2.4 µm with A band 1.6 µm and H zone 0.4 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0 µm, I band after contraction = -2.2e-16 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 2 µm, A band = 1.2 µm
H zone after contraction = 0.2 µm, I band after contraction = 0.4 µm, A band = 1.2 µm
H zone after contraction = 0 µm, I band after contraction = 0.4 µm, A band = 1.6 µm (unchanged)
50.
The figure shows a sarcomere of 3.2 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.8 µm, I band after contraction = 2.4 µm, A band = 1.4 µm
H zone after contraction = 0.6 µm, I band after contraction = 1.4 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 1.6 µm, A band = 1.4 µm
H zone after contraction = 0.7 µm, I band after contraction = 1.4 µm, A band = 1.6 µm (unchanged)
51.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 40 ms, whole twitch = 80 ms, latent period = 0 ms
contraction period = 50 ms, whole twitch = 110 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 95 ms, latent period = 15 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 15 ms
52.
The figure shows a sarcomere of 2.4 µm with A band 1.5 µm and H zone 0.6 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.4 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 0.5 µm, A band = 1.3 µm
H zone after contraction = 0.8 µm, I band after contraction = 1.8 µm, A band = 1.3 µm
H zone after contraction = 0.6 µm, I band after contraction = 1.8 µm, A band = 1.3 µm
53.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 90 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 100 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 0 ms
contraction period = 40 ms, whole twitch = 110 ms, latent period = 10 ms
54.
The figure shows a sarcomere of 2.4 µm with A band 1.6 µm and H zone 0.5 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.1 µm, I band after contraction = 0.8 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 0.4 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = -2.2e-16 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.9 µm, I band after contraction = 1.9 µm, A band = 1.2 µm
55.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 40 ms, whole twitch = 110 ms, latent period = 30 ms
contraction period = 40 ms, whole twitch = 110 ms, latent period = 15 ms
contraction period = 30 ms, whole twitch = 100 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 0 ms
56.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 55 ms, whole twitch = 95 ms, latent period = 40 ms
contraction period = 55 ms, whole twitch = 90 ms, latent period = 15 ms
contraction period = 50 ms, whole twitch = 105 ms, latent period = 15 ms
contraction period = 40 ms, whole twitch = 105 ms, latent period = 15 ms
57.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 60 ms, whole twitch = 120 ms, latent period = 0 ms
contraction period = 60 ms, whole twitch = 120 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 110 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 110 ms, latent period = 10 ms
58.
The figure shows a sarcomere of 3.2 µm with A band 1.5 µm and H zone 0.5 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.2 µm, I band after contraction = 1.4 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.2 µm, I band after contraction = 2.7 µm, A band = 1.2 µm
H zone after contraction = 0.35 µm, I band after contraction = 1.1 µm, A band = 1.2 µm
H zone after contraction = 0.35 µm, I band after contraction = 2.7 µm, A band = 1.2 µm
59.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 85 ms, latent period = 40 ms
contraction period = 45 ms, whole twitch = 90 ms, latent period = 40 ms
contraction period = 45 ms, whole twitch = 85 ms, latent period = 5 ms
contraction period = 40 ms, whole twitch = 85 ms, latent period = 5 ms
60.
The figure shows a sarcomere of 2.8 µm with A band 1.6 µm and H zone 0.6 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1.2 µm, A band = 1.4 µm
H zone after contraction = 0.8 µm, I band after contraction = 2.2 µm, A band = 1.4 µm
H zone after contraction = 0.6 µm, I band after contraction = 1 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.4 µm, I band after contraction = 1 µm, A band = 1.6 µm (unchanged)
61.
The figure shows a sarcomere of 2.8 µm with A band 1.5 µm and H zone 0.5 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.3 µm, I band after contraction = 1.1 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.3 µm, I band after contraction = 1.3 µm, A band = 1.3 µm
H zone after contraction = 0.7 µm, I band after contraction = 0.9 µm, A band = 1.3 µm
H zone after contraction = 0.5 µm, I band after contraction = 1.3 µm, A band = 1.3 µm
62.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 110 ms, latent period = 15 ms
contraction period = 60 ms, whole twitch = 115 ms, latent period = 15 ms
contraction period = 60 ms, whole twitch = 125 ms, latent period = 15 ms
contraction period = 50 ms, whole twitch = 125 ms, latent period = 15 ms
63.
The figure shows a sarcomere of 2.6 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 1.1 µm, I band after contraction = 0.4 µm, A band = 1.3 µm
H zone after contraction = 0.8 µm, I band after contraction = 1 µm, A band = 1.3 µm
H zone after contraction = 0.5 µm, I band after contraction = 0.7 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.65 µm, I band after contraction = 1 µm, A band = 1.3 µm
64.
Three plant cells with sap concentration 0.4 M were placed in 0.6, 0.8 and 1.0 M solutions respectively (figure). Which option is correct?
cell 2: turgid — supports the plant, no water movement
cell 2: vacuole unchanged, water leaves the cell
cell 2: plasmolysed — the plant wilts, no water movement
cell 2: plasmolysed — the plant wilts, water leaves the cell
65.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 120 ms, latent period = 10 ms
contraction period = 60 ms, whole twitch = 130 ms, latent period = 0 ms
contraction period = 60 ms, whole twitch = 130 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 130 ms, latent period = 0 ms
66.
The figure shows a sarcomere of 2.8 µm with A band 1.6 µm and H zone 0.4 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.1 µm, I band after contraction = 0.9 µm, A band = 1.3 µm
H zone after contraction = 0.4 µm, I band after contraction = 0.9 µm, A band = 1.3 µm
H zone after contraction = 0.1 µm, I band after contraction = 2.4 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 0.9 µm, A band = 1.6 µm (unchanged)
67.
The figure shows a sarcomere of 3.2 µm with A band 1.6 µm and H zone 0.6 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1.2 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 1 µm, I band after contraction = 1.2 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.2 µm, I band after contraction = 1.2 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.4 µm, I band after contraction = 1.6 µm, A band = 1.6 µm (unchanged)
68.
The figure shows a sarcomere of 2.8 µm with A band 1.5 µm and H zone 0.4 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.7 µm, I band after contraction = 1 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.7 µm, I band after contraction = 0.7 µm, A band = 1.2 µm
H zone after contraction = 0.1 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 1 µm, A band = 1.5 µm (unchanged)
69.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 40 ms, whole twitch = 70 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 75 ms, latent period = 10 ms
contraction period = 30 ms, whole twitch = 70 ms, latent period = 5 ms
contraction period = 30 ms, whole twitch = 75 ms, latent period = 5 ms
70.
The figure shows a sarcomere of 2.6 µm with A band 1.5 µm and H zone 0.8 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.4 µm, I band after contraction = 1.1 µm, A band = 1.1 µm
H zone after contraction = 0.6 µm, I band after contraction = 1.8 µm, A band = 1.1 µm
H zone after contraction = 0.4 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
71.
The figure shows a sarcomere of 2.6 µm with A band 1.6 µm and H zone 0.4 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.1 µm, I band after contraction = 0.7 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.4 µm, I band after contraction = 0.4 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.7 µm, I band after contraction = 0.7 µm, A band = 1.3 µm
H zone after contraction = 0.25 µm, I band after contraction = 0.7 µm, A band = 1.3 µm
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Questions count:
71
Passing grade:
60%
Start Quiz
1.
The figure shows the human vertebral column (33 vertebrae) divided into coloured regions. Which option is correct?
region X: cervical, 7 vertebrae, pairs of true ribs = 7
region X: cervical, 7 vertebrae, pairs of true ribs = 2
region X: sacral (fused), 5 vertebrae, pairs of true ribs = 2
region X: thoracic, 12 vertebrae, pairs of true ribs = 3
2.
Three plant cells with sap concentration 0.5 M were placed in 0.1, 0.2 and 1.0 M solutions respectively (figure). Which option is correct?
cell 1: turgid — supports the plant, no water movement
cell 1: turgid — supports the plant, water enters the cell
cell 1: plasmolysed — the plant wilts, water leaves the cell
cell 1: plasmolysed — the plant wilts, no water movement
3.
The figure shows a sarcomere of 3.2 µm with A band 1.6 µm and H zone 0.6 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1 µm, A band = 1.3 µm
H zone after contraction = 0.45 µm, I band after contraction = 2.6 µm, A band = 1.3 µm
H zone after contraction = 0.3 µm, I band after contraction = 1.3 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.9 µm, I band after contraction = 1 µm, A band = 1.3 µm
4.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 80 ms, latent period = 0 ms
contraction period = 50 ms, whole twitch = 80 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 80 ms, latent period = 0 ms
5.
A seedling root was placed as shown (horizontal, in the dark). Which option is correct?
auxin collects on the lower side, stem bends downward
auxin collects on the lower side, no bending
auxin collects on the lower side, root bends downward
auxin collects on the lower side, root bends upward
6.
Three plant cells with sap concentration 0.5 M were placed in 0.05, 0.6 and 1.0 M solutions respectively (figure). Which option is correct?
cell 1: vacuole unchanged, no water movement
cell 1: turgid — supports the plant, water enters the cell
cell 1: plasmolysed — the plant wilts, water leaves the cell
cell 1: vacuole unchanged, water leaves the cell
7.
The figure shows a sarcomere of 2.4 µm with A band 1.5 µm and H zone 0.5 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.1 µm, I band after contraction = 0.5 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 0.9 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.5 µm, I band after contraction = 0.1 µm, A band = 1.1 µm
H zone after contraction = 0.5 µm, I band after contraction = 1.9 µm, A band = 1.1 µm
8.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 40 ms, whole twitch = 90 ms, latent period = 50 ms
contraction period = 60 ms, whole twitch = 90 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 5 ms
9.
The figure shows the human vertebral column (33 vertebrae) divided into coloured regions. Which option is correct?
region X: coccygeal (fused), 4 vertebrae, pairs of false ribs = 3
region X: coccygeal (fused), 6 vertebrae, pairs of false ribs = 3
region X: thoracic, 12 vertebrae, pairs of false ribs = 7
region X: coccygeal (fused), 6 vertebrae, pairs of false ribs = 7
10.
Three plant cells with sap concentration 0.3 M were placed in 0.05, 0.6 and 1.0 M solutions respectively (figure). Which option is correct?
cell 3: plasmolysed — the plant wilts, water leaves the cell
cell 3: plasmolysed — the plant wilts, water enters the cell
cell 3: vacuole unchanged, no water movement
cell 3: turgid — supports the plant, water leaves the cell
11.
The figure shows a sarcomere of 2.6 µm with A band 1.6 µm and H zone 0.6 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 0.8 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.4 µm, I band after contraction = 0.8 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 1 µm, A band = 1.4 µm
H zone after contraction = 0.5 µm, I band after contraction = 0.6 µm, A band = 1.4 µm
12.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 105 ms, latent period = 5 ms
contraction period = 55 ms, whole twitch = 105 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 5 ms
contraction period = 50 ms, whole twitch = 105 ms, latent period = 10 ms
13.
Three plant cells with sap concentration 0.5 M were placed in 0.05, 0.1 and 0.6 M solutions respectively (figure). Which option is correct?
cell 1: vacuole unchanged, water enters the cell
cell 1: plasmolysed — the plant wilts, water leaves the cell
cell 1: vacuole unchanged, no water movement
cell 1: turgid — supports the plant, water enters the cell
14.
The figure shows a sarcomere of 2.6 µm with A band 1.6 µm and H zone 0.5 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.3 µm, I band after contraction = 0.2 µm, A band = 1.2 µm
H zone after contraction = 0.3 µm, I band after contraction = 1 µm, A band = 1.2 µm
H zone after contraction = 0.1 µm, I band after contraction = 0.6 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 2.1 µm, A band = 1.6 µm (unchanged)
15.
The figure shows a sarcomere of 3.0 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.4 µm, I band after contraction = 1 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 2.2 µm, A band = 1.2 µm
H zone after contraction = 0.6 µm, I band after contraction = 0.6 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 1.4 µm, A band = 1.2 µm
16.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 60 ms, whole twitch = 115 ms, latent period = 15 ms
contraction period = 40 ms, whole twitch = 115 ms, latent period = 15 ms
contraction period = 60 ms, whole twitch = 130 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 105 ms, latent period = 15 ms
17.
A seedling stem was placed as shown (unilateral light). Which option is correct?
auxin collects on the right (lit) side, root bends upward
auxin spreads evenly, root bends upward
auxin spreads evenly, stem bends to the left
auxin collects on the left (shaded) side, stem bends to the right
18.
Three plant cells with sap concentration 0.3 M were placed in 0.6, 0.8 and 1.0 M solutions respectively (figure). Which option is correct?
cell 1: vacuole unchanged, water leaves the cell
cell 1: plasmolysed — the plant wilts, water enters the cell
cell 1: turgid — supports the plant, water leaves the cell
cell 1: plasmolysed — the plant wilts, water leaves the cell
19.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 45 ms, whole twitch = 100 ms, latent period = 0 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 95 ms, latent period = 5 ms
contraction period = 40 ms, whole twitch = 95 ms, latent period = 10 ms
20.
The figure shows a sarcomere of 2.6 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 1.2 µm, I band after contraction = 1.8 µm, A band = 1.2 µm
H zone after contraction = 0.4 µm, I band after contraction = 0.6 µm, A band = 1.2 µm
H zone after contraction = 0.8 µm, I band after contraction = 1 µm, A band = 1.2 µm
H zone after contraction = 0.4 µm, I band after contraction = 0.6 µm, A band = 1.6 µm (unchanged)
21.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 105 ms, latent period = 15 ms
contraction period = 65 ms, whole twitch = 120 ms, latent period = 0 ms
contraction period = 60 ms, whole twitch = 105 ms, latent period = 0 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 15 ms
22.
A seedling stem was placed as shown (unilateral light). Which option is correct?
auxin collects on the left (lit) side, stem bends to the right
auxin collects on the right (shaded) side, stem bends to the left
auxin collects on the upper side, no bending
auxin collects on the left (lit) side, root bends upward
23.
The figure shows a sarcomere of 3.0 µm with A band 1.5 µm and H zone 0.4 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0 µm, I band after contraction = 1.1 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.2 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.2 µm, I band after contraction = 2.6 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0 µm, I band after contraction = 2.6 µm, A band = 1.1 µm
24.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 30 ms, whole twitch = 105 ms, latent period = 15 ms
contraction period = 45 ms, whole twitch = 90 ms, latent period = 20 ms
contraction period = 30 ms, whole twitch = 90 ms, latent period = 0 ms
contraction period = 60 ms, whole twitch = 90 ms, latent period = 30 ms
25.
The figure shows a sarcomere of 2.6 µm with A band 1.5 µm and H zone 0.6 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1.1 µm, A band = 1.2 µm
H zone after contraction = 0.6 µm, I band after contraction = 0.5 µm, A band = 1.2 µm
H zone after contraction = 0.3 µm, I band after contraction = 0.8 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.45 µm, I band after contraction = 2 µm, A band = 1.5 µm (unchanged)
26.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 45 ms, whole twitch = 85 ms, latent period = 15 ms
contraction period = 45 ms, whole twitch = 70 ms, latent period = 20 ms
contraction period = 30 ms, whole twitch = 85 ms, latent period = 15 ms
contraction period = 45 ms, whole twitch = 100 ms, latent period = 20 ms
27.
The figure shows the human vertebral column (33 vertebrae) divided into coloured regions. Which option is correct?
region X: lumbar, 5 vertebrae, pairs of true ribs = 7
region X: lumbar, 7 vertebrae, pairs of true ribs = 7
region X: cervical, 7 vertebrae, pairs of true ribs = 2
region X: lumbar, 5 vertebrae, pairs of true ribs = 2
28.
The figure shows a sarcomere of 2.8 µm with A band 1.6 µm and H zone 0.5 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.1 µm, I band after contraction = 0.8 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.9 µm, I band after contraction = 0.4 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 0.8 µm, A band = 1.2 µm
H zone after contraction = 0.1 µm, I band after contraction = 2.3 µm, A band = 1.6 µm (unchanged)
29.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 115 ms, latent period = 15 ms
contraction period = 60 ms, whole twitch = 115 ms, latent period = 15 ms
contraction period = 60 ms, whole twitch = 130 ms, latent period = 15 ms
contraction period = 50 ms, whole twitch = 115 ms, latent period = 0 ms
30.
The figure shows a sarcomere of 2.6 µm with A band 1.5 µm and H zone 0.8 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1.1 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 0.9 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.7 µm, I band after contraction = 1.1 µm, A band = 1.3 µm
H zone after contraction = 0.6 µm, I band after contraction = 0.9 µm, A band = 1.5 µm (unchanged)
31.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 115 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 115 ms, latent period = 5 ms
contraction period = 50 ms, whole twitch = 110 ms, latent period = 10 ms
contraction period = 60 ms, whole twitch = 115 ms, latent period = 5 ms
32.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 30 ms, whole twitch = 95 ms, latent period = 30 ms
contraction period = 30 ms, whole twitch = 95 ms, latent period = 5 ms
contraction period = 40 ms, whole twitch = 95 ms, latent period = 30 ms
contraction period = 35 ms, whole twitch = 95 ms, latent period = 5 ms
33.
The figure shows a sarcomere of 3.0 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.8 µm, I band after contraction = 1 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 1.2 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 1.2 µm, A band = 1.4 µm
H zone after contraction = 1 µm, I band after contraction = 1.2 µm, A band = 1.4 µm
34.
The figure shows a sarcomere of 3.2 µm with A band 1.5 µm and H zone 0.5 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.5 µm, I band after contraction = 1.5 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.3 µm, I band after contraction = 1.5 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.5 µm, I band after contraction = 2.7 µm, A band = 1.3 µm
H zone after contraction = 0.4 µm, I band after contraction = 2.7 µm, A band = 1.3 µm
35.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 40 ms, whole twitch = 105 ms, latent period = 5 ms
contraction period = 45 ms, whole twitch = 110 ms, latent period = 0 ms
contraction period = 50 ms, whole twitch = 100 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 100 ms, latent period = 5 ms
36.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 60 ms, whole twitch = 110 ms, latent period = 10 ms
contraction period = 50 ms, whole twitch = 100 ms, latent period = 10 ms
contraction period = 50 ms, whole twitch = 110 ms, latent period = 10 ms
contraction period = 60 ms, whole twitch = 120 ms, latent period = 50 ms
37.
The figure shows a sarcomere of 2.6 µm with A band 1.5 µm and H zone 0.4 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0 µm, I band after contraction = 0.3 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0 µm, I band after contraction = 2.2 µm, A band = 1.1 µm
38.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 30 ms, whole twitch = 90 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 100 ms, latent period = 15 ms
contraction period = 40 ms, whole twitch = 80 ms, latent period = 0 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 10 ms
39.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 110 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 15 ms
contraction period = 40 ms, whole twitch = 100 ms, latent period = 10 ms
contraction period = 50 ms, whole twitch = 100 ms, latent period = 10 ms
40.
Three plant cells with sap concentration 0.5 M were placed in 0.6, 0.8 and 1.0 M solutions respectively (figure). Which option is correct?
cell 2: plasmolysed — the plant wilts, no water movement
cell 2: plasmolysed — the plant wilts, water leaves the cell
cell 2: vacuole unchanged, no water movement
cell 2: vacuole unchanged, water enters the cell
41.
The figure shows a sarcomere of 3.0 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 1.1 µm, I band after contraction = 1.1 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.65 µm, I band after contraction = 1.1 µm, A band = 1.3 µm
H zone after contraction = 0.5 µm, I band after contraction = 1.1 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.5 µm, I band after contraction = 2.2 µm, A band = 1.3 µm
42.
The figure shows a sarcomere of 2.4 µm with A band 1.6 µm and H zone 0.6 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.9 µm, I band after contraction = 0.5 µm, A band = 1.3 µm
H zone after contraction = 0.45 µm, I band after contraction = 0.8 µm, A band = 1.3 µm
H zone after contraction = 0.45 µm, I band after contraction = 0.2 µm, A band = 1.3 µm
H zone after contraction = 0.3 µm, I band after contraction = 0.5 µm, A band = 1.6 µm (unchanged)
43.
The figure shows a sarcomere of 2.4 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.8 µm, I band after contraction = 0.6 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 1.6 µm, A band = 1.4 µm
H zone after contraction = 1 µm, I band after contraction = 0.6 µm, A band = 1.4 µm
H zone after contraction = 0.6 µm, I band after contraction = 0.6 µm, A band = 1.6 µm (unchanged)
44.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 30 ms, whole twitch = 90 ms, latent period = 10 ms
contraction period = 30 ms, whole twitch = 80 ms, latent period = 15 ms
contraction period = 30 ms, whole twitch = 80 ms, latent period = 10 ms
contraction period = 30 ms, whole twitch = 70 ms, latent period = 0 ms
45.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 30 ms, whole twitch = 75 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 5 ms
contraction period = 30 ms, whole twitch = 85 ms, latent period = 5 ms
contraction period = 35 ms, whole twitch = 80 ms, latent period = 30 ms
46.
The figure shows a sarcomere of 3.2 µm with A band 1.5 µm and H zone 0.8 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1.3 µm, A band = 1.1 µm
H zone after contraction = 1.2 µm, I band after contraction = 1.7 µm, A band = 1.1 µm
H zone after contraction = 0.8 µm, I band after contraction = 1.7 µm, A band = 1.1 µm
H zone after contraction = 0.4 µm, I band after contraction = 1.3 µm, A band = 1.5 µm (unchanged)
47.
The figure shows a sarcomere of 2.6 µm with A band 1.5 µm and H zone 0.4 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.2 µm, I band after contraction = 0.9 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.4 µm, I band after contraction = 0.7 µm, A band = 1.3 µm
H zone after contraction = 0.6 µm, I band after contraction = 2.2 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.3 µm, I band after contraction = 1.1 µm, A band = 1.3 µm
48.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 45 ms, whole twitch = 95 ms, latent period = 15 ms
contraction period = 40 ms, whole twitch = 95 ms, latent period = 15 ms
contraction period = 30 ms, whole twitch = 80 ms, latent period = 15 ms
contraction period = 30 ms, whole twitch = 95 ms, latent period = 15 ms
49.
The figure shows a sarcomere of 2.4 µm with A band 1.6 µm and H zone 0.4 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0 µm, I band after contraction = -2.2e-16 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 2 µm, A band = 1.2 µm
H zone after contraction = 0.2 µm, I band after contraction = 0.4 µm, A band = 1.2 µm
H zone after contraction = 0 µm, I band after contraction = 0.4 µm, A band = 1.6 µm (unchanged)
50.
The figure shows a sarcomere of 3.2 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.8 µm, I band after contraction = 2.4 µm, A band = 1.4 µm
H zone after contraction = 0.6 µm, I band after contraction = 1.4 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.8 µm, I band after contraction = 1.6 µm, A band = 1.4 µm
H zone after contraction = 0.7 µm, I band after contraction = 1.4 µm, A band = 1.6 µm (unchanged)
51.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 40 ms, whole twitch = 80 ms, latent period = 0 ms
contraction period = 50 ms, whole twitch = 110 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 95 ms, latent period = 15 ms
contraction period = 50 ms, whole twitch = 95 ms, latent period = 15 ms
52.
The figure shows a sarcomere of 2.4 µm with A band 1.5 µm and H zone 0.6 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.4 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 0.5 µm, A band = 1.3 µm
H zone after contraction = 0.8 µm, I band after contraction = 1.8 µm, A band = 1.3 µm
H zone after contraction = 0.6 µm, I band after contraction = 1.8 µm, A band = 1.3 µm
53.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 90 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 100 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 0 ms
contraction period = 40 ms, whole twitch = 110 ms, latent period = 10 ms
54.
The figure shows a sarcomere of 2.4 µm with A band 1.6 µm and H zone 0.5 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.1 µm, I band after contraction = 0.8 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 0.4 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = -2.2e-16 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.9 µm, I band after contraction = 1.9 µm, A band = 1.2 µm
55.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 40 ms, whole twitch = 110 ms, latent period = 30 ms
contraction period = 40 ms, whole twitch = 110 ms, latent period = 15 ms
contraction period = 30 ms, whole twitch = 100 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 90 ms, latent period = 0 ms
56.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 55 ms, whole twitch = 95 ms, latent period = 40 ms
contraction period = 55 ms, whole twitch = 90 ms, latent period = 15 ms
contraction period = 50 ms, whole twitch = 105 ms, latent period = 15 ms
contraction period = 40 ms, whole twitch = 105 ms, latent period = 15 ms
57.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 60 ms, whole twitch = 120 ms, latent period = 0 ms
contraction period = 60 ms, whole twitch = 120 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 110 ms, latent period = 40 ms
contraction period = 40 ms, whole twitch = 110 ms, latent period = 10 ms
58.
The figure shows a sarcomere of 3.2 µm with A band 1.5 µm and H zone 0.5 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.2 µm, I band after contraction = 1.4 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.2 µm, I band after contraction = 2.7 µm, A band = 1.2 µm
H zone after contraction = 0.35 µm, I band after contraction = 1.1 µm, A band = 1.2 µm
H zone after contraction = 0.35 µm, I band after contraction = 2.7 µm, A band = 1.2 µm
59.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 85 ms, latent period = 40 ms
contraction period = 45 ms, whole twitch = 90 ms, latent period = 40 ms
contraction period = 45 ms, whole twitch = 85 ms, latent period = 5 ms
contraction period = 40 ms, whole twitch = 85 ms, latent period = 5 ms
60.
The figure shows a sarcomere of 2.8 µm with A band 1.6 µm and H zone 0.6 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1.2 µm, A band = 1.4 µm
H zone after contraction = 0.8 µm, I band after contraction = 2.2 µm, A band = 1.4 µm
H zone after contraction = 0.6 µm, I band after contraction = 1 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.4 µm, I band after contraction = 1 µm, A band = 1.6 µm (unchanged)
61.
The figure shows a sarcomere of 2.8 µm with A band 1.5 µm and H zone 0.5 µm; it then shortens by 0.2 µm. Which option is correct?
H zone after contraction = 0.3 µm, I band after contraction = 1.1 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.3 µm, I band after contraction = 1.3 µm, A band = 1.3 µm
H zone after contraction = 0.7 µm, I band after contraction = 0.9 µm, A band = 1.3 µm
H zone after contraction = 0.5 µm, I band after contraction = 1.3 µm, A band = 1.3 µm
62.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 110 ms, latent period = 15 ms
contraction period = 60 ms, whole twitch = 115 ms, latent period = 15 ms
contraction period = 60 ms, whole twitch = 125 ms, latent period = 15 ms
contraction period = 50 ms, whole twitch = 125 ms, latent period = 15 ms
63.
The figure shows a sarcomere of 2.6 µm with A band 1.6 µm and H zone 0.8 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 1.1 µm, I band after contraction = 0.4 µm, A band = 1.3 µm
H zone after contraction = 0.8 µm, I band after contraction = 1 µm, A band = 1.3 µm
H zone after contraction = 0.5 µm, I band after contraction = 0.7 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.65 µm, I band after contraction = 1 µm, A band = 1.3 µm
64.
Three plant cells with sap concentration 0.4 M were placed in 0.6, 0.8 and 1.0 M solutions respectively (figure). Which option is correct?
cell 2: turgid — supports the plant, no water movement
cell 2: vacuole unchanged, water leaves the cell
cell 2: plasmolysed — the plant wilts, no water movement
cell 2: plasmolysed — the plant wilts, water leaves the cell
65.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 50 ms, whole twitch = 120 ms, latent period = 10 ms
contraction period = 60 ms, whole twitch = 130 ms, latent period = 0 ms
contraction period = 60 ms, whole twitch = 130 ms, latent period = 50 ms
contraction period = 50 ms, whole twitch = 130 ms, latent period = 0 ms
66.
The figure shows a sarcomere of 2.8 µm with A band 1.6 µm and H zone 0.4 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.1 µm, I band after contraction = 0.9 µm, A band = 1.3 µm
H zone after contraction = 0.4 µm, I band after contraction = 0.9 µm, A band = 1.3 µm
H zone after contraction = 0.1 µm, I band after contraction = 2.4 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 0.9 µm, A band = 1.6 µm (unchanged)
67.
The figure shows a sarcomere of 3.2 µm with A band 1.6 µm and H zone 0.6 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.6 µm, I band after contraction = 1.2 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 1 µm, I band after contraction = 1.2 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.2 µm, I band after contraction = 1.2 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.4 µm, I band after contraction = 1.6 µm, A band = 1.6 µm (unchanged)
68.
The figure shows a sarcomere of 2.8 µm with A band 1.5 µm and H zone 0.4 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.7 µm, I band after contraction = 1 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.7 µm, I band after contraction = 0.7 µm, A band = 1.2 µm
H zone after contraction = 0.1 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.1 µm, I band after contraction = 1 µm, A band = 1.5 µm (unchanged)
69.
The graph is a single muscle twitch; the stimulus was given at t = 0. Which option is correct?
contraction period = 40 ms, whole twitch = 70 ms, latent period = 10 ms
contraction period = 40 ms, whole twitch = 75 ms, latent period = 10 ms
contraction period = 30 ms, whole twitch = 70 ms, latent period = 5 ms
contraction period = 30 ms, whole twitch = 75 ms, latent period = 5 ms
70.
The figure shows a sarcomere of 2.6 µm with A band 1.5 µm and H zone 0.8 µm; it then shortens by 0.4 µm. Which option is correct?
H zone after contraction = 0.4 µm, I band after contraction = 1.1 µm, A band = 1.1 µm
H zone after contraction = 0.6 µm, I band after contraction = 1.8 µm, A band = 1.1 µm
H zone after contraction = 0.4 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
H zone after contraction = 0.6 µm, I band after contraction = 0.7 µm, A band = 1.5 µm (unchanged)
71.
The figure shows a sarcomere of 2.6 µm with A band 1.6 µm and H zone 0.4 µm; it then shortens by 0.3 µm. Which option is correct?
H zone after contraction = 0.1 µm, I band after contraction = 0.7 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.4 µm, I band after contraction = 0.4 µm, A band = 1.6 µm (unchanged)
H zone after contraction = 0.7 µm, I band after contraction = 0.7 µm, A band = 1.3 µm
H zone after contraction = 0.25 µm, I band after contraction = 0.7 µm, A band = 1.3 µm
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Applied Mathematics — Second Secondary
