Question 1

During photosynthesis, when is CO2 utilized?

Accepted Answer

A)   During the light reactions only
B)   During the Calvin cycle only
C)   During both the light reactions and the Calvin cycle
D)   During neither the light reactions nor the Calvin cycleE) A) and B)
F) All of the above

Question 2

Explain how the leaf is adapted for capturing energy from sunlight and for acquiring carbon dioxide and water.

Accepted Answer

CO₂ comes through adjustable pores, or st...

Question 3

What happens to CO2 when it moves into the stroma?

Accepted Answer

A)   It immediately passes on to the thylakoids.
B)   The CO2 becomes a by-product of cellular respiration.
C)   The CO2 splits into C and O2.
D)   It is converted to water.
E)   It gets incorporated into the Calvin cycle and goes toward the formation of glucose.F) A) and D)
G) A) and E)

Question 4

The carotenoids and other accessory pigments in the chloroplast help capture light into the reaction centerʹs chlorophyll molecules.

Accepted Answer

A) True 
 B)False

Question 5

The term cycle is used to describe the Calvin cycle because

Accepted Answer

A)   the reactions occur only once in a 24-hour period.
B)   glucose is synthesized during the process.
C)   the process depends on products from the light reactions.
D)   the metabolic pathway begins and ends with RuBP.
E)   CO2 is fixed.F) B) and E)
G) A) and B)

Question 6

Photosystem II generates_________ , and photosystem I generates_________ , both of which are required by the light reactions.

Accepted Answer

The answer of Photosystem II generates_________ , and photosystem I...

Question 7

Enzymes are required during which of the following reactions?

Accepted Answer

A)   The light reactions only
B)   The Calvin cycle only
C)   Both the light reactions and the Calvin cycle
D)   Neither the light reactions nor the Calvin cycleE) A) and C)
F) None of the above

Question 8

Carbon dioxide is required in the light reactions of photosynthesis.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is a source of electrons that plants use for reduction reactions during photosynthesis?

Accepted Answer

A)   H2O
B)   RuBP
C)   Glucose
D)   O2
E)   CO2F) D) and E)
G) None of the above

Question 10

Pigments that absorb light energy to drive photosynthesis include

Accepted Answer

A)   anthocyanins only.
B)   chlorophyll only.
C)   carotenoids only.
D)   chlorophyll and carotenoids.
E)   carotenoids and anthocyanins.F) None of the above
G) A) and D)

Question 11

Light reactions occur in the_________ , and the Calvin cycle occurs in the_________ of the chloroplast of a typical mesophyll leaf cell.

Accepted Answer

The answer of Light reactions occur in the_________ , and...

Question 12

What structural feature of a leaf enables it to obtain CO2 from the air?

Accepted Answer

A)   Mesophyll
B)   Stomata
C)   Chloroplast
D)   Epidermis
E)   CuticleF) A) and B)
G) C) and D)

Question 13

The products of photosynthesis are

Accepted Answer

A)   glucose and carbon dioxide.
B)   glucose, water, and oxygen.
C)   carbon dioxide, chlorophyll, and oxygen.
D)   carbon dioxide, water, and energy.
E)   glucose and water.F) B) and E)
G) A) and C)

Question 14

In the process of photosynthesis, _________and_________formed during the light reactions are required in the Calvin cycle to reduce carbon dioxide to glucose.

Accepted Answer

The answer of In the process of photosynthesis, _________and_________formed during...

Question 15

All of the following are part of the Calvin cycle EXCEPT

Accepted Answer

A)   generation of ATP.
B)   synthesis of G3P.
C)   regeneration of RuBP.
D)   carbon fixation.E) B) and D)
F) B) and C)

Question 16

From where does the O2 released during the light reactions of photosynthesis come?

Accepted Answer

A)   RuBP
B)   ATP
C)   CO2
D)   C6H12O6
E)   H2OF) C) and E)
G) A) and B)

Question 17

The majority of the leafʹs chloroplasts are found in the mesophyll cells.

Accepted Answer

A) True 
 B)False

Question 18

During the process of_________ , RuBP combines with oxygen instead of carbon dioxide.

Accepted Answer

The answer of During the process of_________ , RuBP combines...

Question 19

In the reduction of CO2 during C4 photosynthesis, which of the following initially combines with CO2?

Accepted Answer

A)   PEP
B)   RuBP
C)   PGAL
D)   NADH
E)   PGAF) None of the above
G) A) and E)

Question 20

Based on this graph, which wavelengths of light would result in the highest rates of ATP production during photosynthesis?

Accepted Answer

A)   550-600 nanometers
B)   600-650 nanometers
C)   700-750 nanometers
D)   450-500 nanometersE) B) and C)
F) All of the above

Exam 7: Capturing Solar Energy: Photosynthesis

Pigments that absorb light energy to drive photosynthesis include

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During the process of_________ , RuBP combines with oxygen instead of carbon dioxide.

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Which of the following is a source of electrons that plants use for reduction reactions during photosynthesis?

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Photosystem II generates_________ , and photosystem I generates_________ , both of which are required by the light reactions.

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In the reduction of CO2 during C4 photosynthesis, which of the following initially combines with CO2?

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What happens to CO2 when it moves into the stroma?

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From where does the O2 released during the light reactions of photosynthesis come?

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What structural feature of a leaf enables it to obtain CO2 from the air?

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During photosynthesis, when is CO2 utilized?

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The products of photosynthesis are

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Carbon dioxide is required in the light reactions of photosynthesis.

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In the process of photosynthesis, _________and_________formed during the light reactions are required in the Calvin cycle to reduce carbon dioxide to glucose.

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The term cycle is used to describe the Calvin cycle because

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The majority of the leafʹs chloroplasts are found in the mesophyll cells.

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All of the following are part of the Calvin cycle EXCEPT

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The carotenoids and other accessory pigments in the chloroplast help capture light into the reaction centerʹs chlorophyll molecules.

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Explain how the leaf is adapted for capturing energy from sunlight and for acquiring carbon dioxide and water.

Correct AnswerverifiedCO2 comes through adjustable pores, or st...View AnswerShow Answer

Enzymes are required during which of the following reactions?

Correct AnswerverifiedShow Answer

Light reactions occur in the_________ , and the Calvin cycle occurs in the_________ of the chloroplast of a typical mesophyll leaf cell.

Correct AnswerverifiedShow Answer

Based on this graph, which wavelengths of light would result in the highest rates of ATP production during photosynthesis?

Correct AnswerverifiedShow Answer

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Photosystem II generates_ , and photosystem I generates_ , both of which are required by the light reactions.

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In the reduction of CO₂ during C₄ photosynthesis, which of the following initially combines with CO₂?

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What happens to CO₂ when it moves into the stroma?

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What structural feature of a leaf enables it to obtain CO₂ from the air?

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During photosynthesis, when is CO₂ utilized?

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In the process of photosynthesis, _and_formed during the light reactions are required in the Calvin cycle to reduce carbon dioxide to glucose.

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CO₂ comes through adjustable pores, or st...
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Light reactions occur in the_ , and the Calvin cycle occurs in the_ of the chloroplast of a typical mesophyll leaf cell.

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Correct Answer
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