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Curriculum and course: Biology

Curriculum and course: Biology

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Chapter 2 - Molecular Biology and Earth Science1 Annotated lessons + question banks and assessments

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Quiz

Lesson 1 – Support and Movement in Living Organisms — Picture questions (exam style)

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  • Questions count: 44
  • Passing grade: 60%
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1.
The figure shows the human vertebral column (33 vertebrae) divided into coloured regions. Which option is correct?
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?
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?
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.
A seedling root was placed as shown (horizontal, in the dark). Which option is correct?
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
5.
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?
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
6.
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?
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
7.
The figure shows the human vertebral column (33 vertebrae) divided into coloured regions. Which option is correct?
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
8.
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?
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
9.
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?
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
10.
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?
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
11.
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?
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)
12.
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?
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
13.
A seedling stem was placed as shown (unilateral light). Which option is correct?
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
14.
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?
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
15.
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?
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)
16.
A seedling stem was placed as shown (unilateral light). Which option is correct?
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
17.
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?
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
18.
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?
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)
19.
The figure shows the human vertebral column (33 vertebrae) divided into coloured regions. Which option is correct?
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
20.
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?
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)
21.
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?
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)
22.
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?
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
23.
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?
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
24.
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?
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
25.
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?
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
26.
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?
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
27.
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?
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)
28.
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?
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)
29.
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?
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)
30.
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?
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
31.
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?
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)
32.
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?
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)
33.
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?
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
34.
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?
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
35.
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?
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
36.
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?
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)
37.
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?
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
38.
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?
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
39.
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?
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
40.
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?
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)
41.
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?
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)
42.
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?
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)
43.
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?
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)
44.
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?
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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