Question 1

Which of the following occurs as a result of splitting a water molecule in photosystem II?

Accepted Answer

A)   O₂ is produced that can be released by the cell.
B)   O₂ is produced that can be used by the plant in respiration.
C)   Protons are released to assist in the electron transport chain.
D)   Electrons are released to assist in the electron transport chain.
E)   All answer choices are correct. E

Question 2

How would Earth be different without photosynthesis?

Accepted Answer

A)   The amount of oxygen in the atmosphere would be lower.
B)   Heterotrophs would have fewer food sources.
C)   There would be destruction to the food web.
D)   More sunlight would be absorbed and converted to environmental heat.
E)   All answers are correct.

Question 3

Biologists consider photosynthesis to be the most important metabolic process because without it,there would be no CO₂ in the atmosphere.

Accepted Answer

A) True 
 B)False  False

Question 4

The carbon reactions produce ATP and NADPH.

Accepted Answer

A) True 
 B)False

Question 5

Which plants are best suited to cool,wet conditions?

Accepted Answer

A)   C₄
B)   C₃
C)   CAM
D)   All types are equally suited.

Question 6

The main product of photosynthesis used by plants for food is

Accepted Answer

A)   glucose.
B)   oxygen.
C)   carbon dioxide.
D)   chlorophyll.
E)   sunlight.

Question 7

Which does not usually increase in overall abundance as a result of photosynthesis?

Accepted Answer

A)   nitrogen
B)   glucose
C)   sunlight
D)   ATP
E)   oxygen

Question 8

Sunlight is the energy source for the light reactions.The energy sources for the carbon reactions are

Accepted Answer

A)   ATP and carbon dioxide.
B)   NADPH and carbon dioxide.
C)   NADPH and ATP.
D)   ATP and oxygen.
E)   NADPH and oxygen.

Question 9

If you were asked to sort cards into drawers,a drawer marked "Packets of Light" would receive cards referring to

Accepted Answer

A)   photons.
B)   protons.
C)   electrons.
D)   lasers.
E)   grana.

Question 10

Plants need water to fill their cells and to perform the light reactions.

Accepted Answer

A) True 
 B)False

Question 11

Photosystem I and photosystem II are part of

Accepted Answer

A)   the light reactions and the carbon reactions.
B)   the light reactions only.
C)   the light reactions and respiration.
D)   the carbon reactions only.
E)   respiration.

Question 12

How do C₄ plants minimize photorespiration?

Accepted Answer

A)   Stomata are open only at night and oxygen is stored in a four-carbon compound.
B)   The light reactions and the carbon reactions occur in different cells, so CO₂ does not come into contact with rubisco.
C)   Stomata are open only at night and CO₂ is stored in a four-carbon compound.
D)   The light reactions and the carbon reactions occur in different cells, so that high levels of CO₂ are always around rubisco.
E)   None of the answer choices are correct.

Question 13

The main product of the carbon reactions is

Accepted Answer

A)   oxygen.
B)   NADPH.
C)   carbon dioxide.
D)   a carbohydrate.
E)   ATP.

Question 14

The carbon atoms in the cellulose of a wood log originally came from ________ absorbed by the plant.

Accepted Answer

A)   glucose
B)   carbon dioxide
C)   nutrients in the soil
D)   water
E)   oxygen B

Question 15

What is produced in the light reactions that is used in the carbon reactions of photosynthesis?

Accepted Answer

A)   ATP and NADPH
B)   ADP and NADP⁺
C)   carbon dioxide and oxygen
D)   water and glucose
E)   oxygen and glucose

Question 16

Match between columns
                        Premises: Calvin cycle
photosystem II
photosystem I
electron transport chain

Accepted Answer

The Answer of releases energy that is used to pump is...

Question 17

What is released at each step of an electron transport chain?

Accepted Answer

A)   ultraviolet wavelengths
B)   electrons
C)   photons
D)   energy
E)   All answers are correct.

Question 18

Photosynthesis

Accepted Answer

A)   is not dependent on chlorophyll.
B)   does not involve oxidation-reduction reactions.
C)   produces water and carbon dioxide.
D)   produces glucose and oxygen.
E)   No answer is correct.

Question 19

The carbon reactions can run on their own without the products of the light reactions.

Accepted Answer

A) True 
 B)False

Question 20

Without photosynthesis,autotrophs would be more abundant.

Accepted Answer

A) True 
 B)False

Exam 5: Photosynthesis

Which of the following occurs as a result of splitting a water molecule in photosystem II?

Correct Answer
verified
E

How would Earth be different without photosynthesis?

Correct Answer
verified

Biologists consider photosynthesis to be the most important metabolic process because without it,there would be no CO₂ in the atmosphere.

Correct Answer
verified
False

The carbon reactions produce ATP and NADPH.

Correct Answer
verified

Which plants are best suited to cool,wet conditions?

Correct Answer
verified

The main product of photosynthesis used by plants for food is

Correct Answer
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Which does not usually increase in overall abundance as a result of photosynthesis?

Correct Answer
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Sunlight is the energy source for the light reactions.The energy sources for the carbon reactions are

Correct Answer
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If you were asked to sort cards into drawers,a drawer marked "Packets of Light" would receive cards referring to

Correct Answer
verified

Plants need water to fill their cells and to perform the light reactions.

Correct Answer
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Photosystem I and photosystem II are part of

Correct Answer
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How do C₄ plants minimize photorespiration?

Correct Answer
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The main product of the carbon reactions is

Correct Answer
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The carbon atoms in the cellulose of a wood log originally came from ________ absorbed by the plant.

Correct Answer
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B

What is produced in the light reactions that is used in the carbon reactions of photosynthesis?

Correct Answer
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Match the steps of photosynthesis with the correct descriptions.

What is released at each step of an electron transport chain?

Correct Answer
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Photosynthesis

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The carbon reactions can run on their own without the products of the light reactions.

Correct Answer
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Without photosynthesis,autotrophs would be more abundant.

Correct Answer
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Exam 5: Photosynthesis

Which of the following occurs as a result of splitting a water molecule in photosystem II?

Correct AnswerverifiedE

How would Earth be different without photosynthesis?

Correct AnswerverifiedShow Answer

Biologists consider photosynthesis to be the most important metabolic process because without it,there would be no CO₂ in the atmosphere.

Correct AnswerverifiedFalse

The carbon reactions produce ATP and NADPH.

Correct AnswerverifiedShow Answer

Which plants are best suited to cool,wet conditions?

Correct AnswerverifiedShow Answer

The main product of photosynthesis used by plants for food is

Correct AnswerverifiedShow Answer

Which does not usually increase in overall abundance as a result of photosynthesis?

Correct AnswerverifiedShow Answer

Sunlight is the energy source for the light reactions.The energy sources for the carbon reactions are

Correct AnswerverifiedShow Answer

If you were asked to sort cards into drawers,a drawer marked "Packets of Light" would receive cards referring to

Correct AnswerverifiedShow Answer

Plants need water to fill their cells and to perform the light reactions.

Correct AnswerverifiedShow Answer

Photosystem I and photosystem II are part of

Correct AnswerverifiedShow Answer

How do C₄ plants minimize photorespiration?

Correct AnswerverifiedShow Answer

The main product of the carbon reactions is

Correct AnswerverifiedShow Answer

The carbon atoms in the cellulose of a wood log originally came from ________ absorbed by the plant.

Correct AnswerverifiedB

What is produced in the light reactions that is used in the carbon reactions of photosynthesis?

Correct AnswerverifiedShow Answer

Match the steps of photosynthesis with the correct descriptions.

What is released at each step of an electron transport chain?

Correct AnswerverifiedShow Answer

Photosynthesis

Correct AnswerverifiedShow Answer

The carbon reactions can run on their own without the products of the light reactions.

Correct AnswerverifiedShow Answer

Without photosynthesis,autotrophs would be more abundant.

Correct AnswerverifiedShow Answer

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E

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False

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B

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