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Course: Alhussan Biology — Stage 9
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Alhussan Biology — Stage 9

Chapter 9: Plants and Photosynthesis

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Chapter 10: Excretion in Humans

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Chapter 11: Human Genetics and Development

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Chapter 12: The Carbon Cycle and Climate Change

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Chapter 13: Variation and Natural Selection

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Quiz

Biology 9.2 Photosynthesis — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
Oxygen made by a plant at different light intensities. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
2.
Glucose is the building block for carbohydrates, proteins, lipids and ____.
haemoglobin
keratin
chlorophyll
bone
3.
Photosynthesis happens in ____.
nuclei
vacuoles
mitochondria
chloroplasts
4.
Starch in leaves over 48 hours (light 0–12 h and 24–36 h). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 2
A
B
C
D
5.
True or false? Photosynthesis transfers light energy to chemical energy.
True
False
6.
True or false? Chlorophyll absorbs green light most.
True
False
7.
A plant made 60 cm³ of oxygen in 8 hours. What was the mean rate?
52.0 cm³/h
0.1 cm³/h
480.0 cm³/h
7.5 cm³/h
8.
Oxygen output rose from 8 to 20 cm³/h as light increased. Calculate the percentage increase.
60%
12%
150%
250%
9.
Which term matches this definition? “Pores that let gases in and out of leaves.”
Stomata
Independent variable
Potometer
Chlorophyll
10.
True or false? Plants respire only in the dark.
True
False
11.
Which is the correct definition of “Xylem”?
Mineral needed for enzymes.
Waterproof layer on a leaf.
Tissue carrying water and minerals up the plant.
The sugar carried in phloem.
12.
Which statement is correct?
Chlorophyll absorbs green light most.
Carbon dioxide goes into the leaf through the stomata.
Photosynthesis happens in mitochondria.
Photosynthesis turns chemical energy into light.
13.
What a plant uses its glucose for (%). Which has the smallest value?
Dr Dabour Hub Academy - figure 3
Proteins & other
Starch store
Cellulose
Respiration
14.
A plant made 60 cm³ of oxygen in 4 hours. What was the mean rate?
0.1 cm³/h
240.0 cm³/h
56.0 cm³/h
15.0 cm³/h
15.
Which is the correct definition of “Starch”?
Nitrogen, phosphorus and potassium in fertilisers.
Hot water used to heat ethanol safely.
Insoluble store of glucose in plants.
A leaf with green and white parts.
16.
A plant made 96 cm³ of oxygen in 6 hours. What was the mean rate?
0.1 cm³/h
16.0 cm³/h
90.0 cm³/h
576.0 cm³/h
17.
Which is the balanced symbol equation for photosynthesis?
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
6CO₂ + 6O₂ → C₆H₁₂O₆ + 6H₂O
CO₂ + H₂O → C₆H₁₂O₆ + O₂
18.
Oxygen made by a plant at different light intensities. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
19.
What a plant uses its glucose for (%). What is the value for Proteins & other?
Dr Dabour Hub Academy - figure 5
50
25
10
15
20.
Oxygen made by a plant at different light intensities. At what value of "Light intensity (units)" is "Oxygen (cm³/h)" greatest?
Dr Dabour Hub Academy - figure 6
40
0
30
20
21.
Which statement is NOT correct?
Light energy is used to split water molecules.
About half of the glucose is used in respiration.
Chlorophyll absorbs green light most.
Nearly all food and energy in ecosystems comes from photosynthesis.
22.
Starch in leaves over 48 hours (light 0–12 h and 24–36 h). Between which two values of "Time (h)" did "Starch (mg per g)" change the most?
Dr Dabour Hub Academy - figure 7
24 and 30
42 and 48
36 and 42
18 and 24
23.
Which statement is NOT correct?
A cell without chloroplasts cannot photosynthesise.
The reactants are carbon dioxide and water.
Starch is stored in leaves and lasts several days without light.
Root cells photosynthesise.
24.
A leaf makes 120 mg of glucose and uses half in respiration. How much is used?
60 mg
120 mg
240 mg
30 mg
25.
True or false? Root cells photosynthesise.
True
False
26.
Which term matches this definition? “Tissue carrying water and minerals up the plant.”
Vascular bundle
Xylem
Root hair
Limiting factor
27.
Oxygen is a ____ of photosynthesis.
mineral
catalyst
reactant
product
28.
Which statement is correct?
Chlorophyll absorbs green light most.
Photosynthesis happens in chloroplasts.
Glucose is stored as glucose in leaves.
Photosynthesis turns chemical energy into light.
29.
True or false? Glucose cannot be stored, so it is joined to make starch.
True
False
30.
Which statement is NOT correct?
Water comes from the soil.
About half of the glucose is used in respiration.
Water enters leaves through stomata.
The reactants are carbon dioxide and water.
31.
Which is the correct definition of “Tuber”?
Covering used to block light from part of a leaf.
A swollen underground stem that stores starch, such as a potato.
Where sugars are made, such as leaves.
A flammable liquid used to remove chlorophyll.
32.
Starch in leaves over 48 hours (light 0–12 h and 24–36 h). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 8
A
B
C
D
33.
Starch in leaves over 48 hours (light 0–12 h and 24–36 h). Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 9
"Starch (mg per g)" rises to a peak at 12, then falls
"Starch (mg per g)" increases as "Time (h)" increases
"Starch (mg per g)" stays the same
"Starch (mg per g)" decreases as "Time (h)" increases
34.
A leaf makes 360 mg of glucose and uses half in respiration. How much is used?
720 mg
90 mg
180 mg
360 mg
35.
Plants make their own biomass from sunlight, air and ____.
meat
rocks
soil only
water
36.
True or false? Plants get their food from the soil.
True
False
37.
Oxygen output rose from 5 to 15 cm³/h as light increased. Calculate the percentage increase.
67%
200%
300%
10%
38.
What a plant uses its glucose for (%). What is the value for Starch store?
Dr Dabour Hub Academy - figure 10
8
11
18
38
39.
Oxygen made by a plant at different light intensities. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 11
A
B
C
D
40.
About half of the glucose made is used in respiration. If a leaf makes 240 mg of glucose, how much is used in respiration?
480 mg
240 mg
120 mg
60 mg
41.
A plant made 120 cm³ of oxygen in 6 hours. What was the mean rate?
20.0 cm³/h
0.1 cm³/h
720.0 cm³/h
114.0 cm³/h
42.
Which is the correct definition of “Stomata”?
Minerals added to replace those removed by crops.
Tissue carrying sugars around the plant.
Pores that let gases in and out of leaves.
Phloem cell with holes in its end walls.
43.
Oxygen output rose from 8 to 15 cm³/h as light increased. Calculate the percentage increase.
88%
7%
188%
47%
44.
Light absorbed by chlorophyll for each colour. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 12
A
B
C
D
45.
Light absorbed by chlorophyll for each colour. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 13
A
B
C
D
46.
Which is the correct definition of “Photosynthesis”?
Mineral for DNA and membranes.
Bubbles per minute in this experiment.
Loss of water vapour from leaves.
Making glucose from carbon dioxide and water using light energy.
47.
True or false? The reactants are carbon dioxide and water.
True
False
48.
Starch in leaves over 48 hours (light 0–12 h and 24–36 h). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 14
A
B
C
D
49.
Which statement is correct?
A cell without chloroplasts cannot photosynthesise.
Plants get their food from the soil.
Root cells photosynthesise.
Photosynthesis takes in oxygen.
50.
Carbon dioxide goes into the leaf through the ____.
flowers
stomata
xylem
roots
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Part of Chapter 9: Plants and Photosynthesis — see every lesson and quiz in this unit.
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