Curriculum
Course: Alhussan Biology — Stage 9
Login

Curriculum

Alhussan Biology — Stage 9

Chapter 9: Plants and Photosynthesis

0/26

Chapter 10: Excretion in Humans

0/17

Chapter 11: Human Genetics and Development

0/24

Chapter 12: The Carbon Cycle and Climate Change

0/15

Chapter 13: Variation and Natural Selection

0/21
Quiz

9.7 Water and mineral transport in plants — Quiz

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 50
  • Passing grade: B+
Start Quiz
1.
Which statement is correct?
Water lost is replaced by water pulled up the xylem.
High humidity speeds transpiration.
A plant with plenty of water wilts.
Water enters root hairs by active transport.
2.
Which statement is NOT correct?
A plant short of water wilts.
Xylem also helps support the plant.
Minerals are carried dissolved in water.
Lignin makes xylem soft.
3.
Water uptake measured with a potometer at different temperatures. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
4.
Which statement is correct?
High humidity speeds transpiration.
Xylem vessels are living cells.
Water enters root hairs by active transport.
The pull of water is like sucking on a straw.
5.
Mass of a potted plant losing water during a day. At what value of "Time (h)" is "Mass (g)" smallest?
Dr Dabour Hub Academy - figure 2
20
12
14
18
6.
Stomata per mm² on leaf surfaces. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 3
A
B
C
D
7.
Water loss rose from 1.5 g to 4 g in wind. Calculate the percentage increase.
167%
267%
62%
25%
8.
Which statement is correct?
Water evaporates from mesophyll cells into leaf air spaces.
A plant with plenty of water wilts.
Xylem vessels are living cells.
Water is pushed up by roots like a pump only.
9.
Stomata per mm² on leaf surfaces. What is the total of all the values?
Dr Dabour Hub Academy - figure 4
172
154
142
190
10.
A leaf has 40 stomata per mm² on top and 240 underneath. How many times more underneath?
6.0 times
200.0 times
0.2 times
280.0 times
11.
Water loss rose from 2 g to 4 g in wind. Calculate the percentage increase.
50%
200%
100%
20%
12.
Which is the correct definition of “Osmosis”?
Organelle where photosynthesis happens.
Loss of water vapour from leaves.
Water moving into cells through a membrane.
Tissue carrying water and minerals up the plant.
13.
Water uptake measured with a potometer at different temperatures. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 5
"Uptake (mm/min)" increases as "Temperature (°C)" increases
"Uptake (mm/min)" decreases as "Temperature (°C)" increases
"Uptake (mm/min)" rises to a peak at 35, then falls
"Uptake (mm/min)" stays the same
14.
Mass of a potted plant losing water during a day. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 6
A
B
C
D
15.
Water loss rose from 1.5 g to 4.5 g in wind. Calculate the percentage increase.
200%
67%
300%
30%
16.
Stomata per mm² on leaf surfaces. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 7
A
B
C
D
17.
Which statement is NOT correct?
Minerals are carried dissolved in water.
Cohesion means water repels itself.
Plants need water for photosynthesis, support and transport.
A continuous column of water is pulled from the roots.
18.
Which statement is NOT correct?
Water vapour diffuses out through open stomata.
Water lost is replaced by water pulled up the xylem.
Xylem vessels are living cells.
Water molecules stick to each other by cohesion.
19.
Which term matches this definition? “Water molecules sticking to each other.”
Cohesion
Limiting factor
Transpiration
Sieve tube
20.
Mass of a potted plant losing water during a day. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 8
"Mass (g)" rises to a peak at 6, then falls
"Mass (g)" stays the same
"Mass (g)" decreases as "Time (h)" increases
"Mass (g)" increases as "Time (h)" increases
21.
Which statement is NOT correct?
A plant short of water wilts.
Water enters root hairs by active transport.
Water vapour diffuses out through open stomata.
Xylem carries water upwards.
22.
Water uptake measured with a potometer at different temperatures. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 9
A
B
C
D
23.
Which statement is correct?
Xylem vessels are long, dead, hollow tubes.
Water is pushed up by roots like a pump only.
Xylem vessels are living cells.
Lignin makes xylem soft.
24.
Water uptake measured with a potometer at different temperatures. By how much does "Uptake (mm/min)" change between 10 and 35?
Dr Dabour Hub Academy - figure 10
22
20
19
16
25.
A leaf has 30 stomata per mm² on top and 180 underneath. How many times more underneath?
210.0 times
0.2 times
6.0 times
150.0 times
26.
A plant lost 40 g of water in 10 hours. What was the mean rate?
400.0 g/h
4.0 g/h
30.0 g/h
0.2 g/h
27.
A plant lost 30 g of water in 10 hours. What was the mean rate?
300.0 g/h
3.0 g/h
0.3 g/h
20.0 g/h
28.
Which is the correct definition of “Transpiration”?
Loss of water vapour from leaves.
Extension of a root cell that increases surface area.
Moving ions against a gradient using energy.
Light intensity ∝ 1 ÷ distance².
29.
Mass of a potted plant losing water during a day. By how much does "Mass (g)" change between 6 and 20?
Dr Dabour Hub Academy - figure 11
47
453
953
59
30.
Water lost by leaves in different conditions in 1 hour. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 12
A
B
C
D
31.
Which is the correct definition of “Wilting”?
Elodea, often used in this experiment.
Drooping of a plant short of water.
Lack of a mineral causing poor growth.
Substance that strengthens xylem walls.
32.
Mass of a potted plant losing water during a day. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 13
A
B
C
D
33.
Water loss rose from 1.5 g to 6 g in wind. Calculate the percentage increase.
75%
45%
300%
400%
34.
Which is the correct definition of “Stoma”?
A swollen underground stem that stores starch, such as a potato.
A pore on the underside of a leaf.
Organelle where photosynthesis happens.
Energy from the Sun used in photosynthesis.
35.
Water lost by leaves in different conditions in 1 hour. Which has the smallest value?
Dr Dabour Hub Academy - figure 14
Hot & windy
Windy
Still air
Humid
36.
Which term matches this definition? “Apparatus that measures water uptake.”
Photosynthesis
Potometer
Lignin
Stomata
37.
Water lost is replaced by water pulled up the ____.
phloem
roots only
stomata
xylem
38.
Mineral ions enter by ____.
evaporation
diffusion only
osmosis
active transport
39.
A continuous column of water is pulled from the ____.
air
roots
leaves
flowers
40.
Xylem carries water ____.
in circles
downwards only
sideways
upwards
41.
Stomata are mostly on the ____ of leaves.
stem
top
root
underside
42.
Water molecules stick to each other by ____.
magnetism
adhesion only
cohesion
gravity
43.
True or false? Water is pushed up by roots like a pump only.
True
False
44.
True or false? Cohesion means water repels itself.
True
False
45.
True or false? Stomata are mostly on the underside of leaves.
True
False
46.
True or false? A plant short of water wilts.
True
False
47.
True or false? Xylem vessels are made of living cells.
True
False
48.
True or false? Root hair cells give a large surface area to absorb water.
True
False
49.
True or false? Water enters root hairs by active transport.
True
False
50.
True or false? Transpiration is fastest at night.
True
False
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
Part of Chapter 9: Plants and Photosynthesis — see every lesson and quiz in this unit.
Accepted payment methods