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Course: AQA A Level Biology 7402
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AQA A Level Biology 7402

1. Biological Molecules

0/102

2. Cell Structure

0/95

3. Exchange and Transport

0/98

4. Genetics, Variation and Interdependence

0/94

5. Energy Transfers In and Between Organisms (A Level only)

0/63

6. Organisms Respond to Changes in their Environments (A Level only)

0/93

7. Genetics, Populations, Evolution and Ecosystems (A Level only)

0/55

8. The Control of Gene Expression (A Level only)

0/72

9. Exam Guidance and Skills

0/38
Quiz

5.1.3 The Light-Independent Reaction – Exam questions

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  • Questions count: 12
  • Passing grade: B+
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1.

In the light-independent reactions, carbon dioxide is fixed by combining with

GALP
GP
NADP
RuBP, catalysed by RUBISCO
2.
A student tests whether woodlice move away from light. What is the independent variable?
Number of woodlice moving
Size of the choice chamber
Room temperature
Light intensity
3.
Students test maggots' response to light in a choice chamber. What is the independent variable?
Number of maggots on each side
Chamber size
Temperature
Light or dark side
4.
A student grew bean plants under different light intensities for 14 days. Which is the independent variable?
Light intensity
Plant height after 14 days
Volume of water given
Type of soil
5.

The light-independent stage takes place in the

thylakoid space
stroma
grana
inner membrane
6.
In the catalase temperature experiment, what is the independent variable?
Volume of oxygen
Temperature
Mass of liver
Concentration of H₂O₂
7.
Which of the following is not a product of the light-dependent reactions of photosynthesis?
Which of the following is not a product of the light-dependent reactions of photosynthesis?
O2
ATP
NADPH
Sugar
8.
The light-dependent reactions of photosynthesis occur in the
The light-dependent reactions of photosynthesis occur in the
stroma.
mitochondrial matrix.
thylakoid membrane.
cytoplasm.
nucleus.
9.
The oxygen produced during the light reactions of photosynthesis comes directly from
The oxygen produced during the light reactions of photosynthesis comes directly from
H2O.
H2O2.
C2H3O2.
CO2.
CO.
10.

The light-dependent reactions produce

glucose
carbon dioxide
water
ATP, NADPH and oxygen
11.
Hypothesis: "The oxygen released in photosynthesis comes from water." Which result supports this hypothesis?
When the plant was given CO2 containing 18O, the 18O appeared in the released oxygen
When the plant was given water containing 18O, the 18O appeared in the released oxygen
18O appeared in glucose when the water was labeled
Oxygen release increased as light intensity increased
12.
Which statement correctly describes the Calvin cycle?
It occurs in the thylakoid membranes and releases O2
It occurs in the stroma and produces ATP and NADPH by splitting water
It occurs in the mitochondria and produces CO2
It occurs in the stroma and uses ATP and NADPH to fix CO2
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Part of 5. Energy Transfers In and Between Organisms (A Level only) — see every lesson and quiz in this unit.
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