Question 1

The enzyme rubisco combines ribulose bisphosphate with _____ in the first step of the Calvin cycle.

Accepted Answer

A)  glucose
B)  ATP
C)  carbon monoxide
D)  organic compounds
E)  carbon dioxide

Question 2

The electrons flowing through the electron transport chains in photosynthesis originate from ____ and are transported to the carbon reactions by _____.

Accepted Answer

A)  NADPH;oxygen
B)  oxygen;NADPH
C)  NADPH;water
D)  water;NADPH
E)  oxygen;water

Question 3

The light reactions use ATP as the energy source.

Accepted Answer

A) True 
 B)False

Question 4

The light reactions use sunlight as the energy source.

Accepted Answer

A) True 
 B)False

Question 5

What happens in photorespiration that is more energetically costly than the Calvin cycle?

Accepted Answer

A)  Rubisco's active site combines with oxygen instead of carbon dioxide.
B)  Rubisco's active site combines with carbon dioxide instead of glucose.
C)  Rubisco's active site combines with water instead of carbon dioxide.
D)  Rubisco's active site combines with glucose instead of oxygen.
E)  Rubisco's active site combines with glucose instead of carbon dioxidE.

Question 6

For many plants to grow well in hot,dry weather,they must be watered so their stomata will remain open for longer periods of time to let in oxygen.

Accepted Answer

A) True 
 B)False

Question 7

In the section "Investigating Life: Solar-Powered Sea Slugs",chloroplast DNA encodes less than 10% of the proteins required for photosynthesis;the remaining proteins are encoded by DNA in plant nuclei.Elysia chlorotica sea slugs are able to photosynthesize with chloroplasts from the algae they consume.Which hypothesis was tested and supported in explanation of this observation?

Accepted Answer

A)  Some sea slug genes were present in chloroplast chromosomes.
B)  Chloroplasts can function without some proteins involved in photosynthesis.
C)  The sea slugs have to continuously consume chloroplasts to replace the older ones.
D)  Some chloroplast genes were present in the sea slug chromosomes.
E)  Only photosystem II is necessary for photosynthesis.

Question 8

Green and yellow wavelengths of light are useless to most plants.

Accepted Answer

A) True 
 B)False

Question 9

The main product of the carbon reactions is

Accepted Answer

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

Question 10

The main product of photosynthesis used by plants is

Accepted Answer

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

Question 11

Plants are the only organisms that carry out photosynthesis to produce food.

Accepted Answer

A) True 
 B)False

Question 12

In the carbon reactions,carbon dioxide molecules are reduced by the addition of electrons carried from the light reactions by __________.

Accepted Answer

A)  ATP
B)  NADP+
C)  NADPH
D)  oxygen
E)  water

Question 13

The energy source of photosynthesis is

Accepted Answer

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

Question 14

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)  None of the answers are correct.

Question 15

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 16

Where in a plant do you expect to find the highest concentration of chloroplasts?

Accepted Answer

A)  leaves
B)  bark
C)  roots
D)  stems

Question 17

C4 plants and CAM plants fix carbon in a larger molecule only once during photosynthetic reactions.

Accepted Answer

A) True 
 B)False

Question 18

Which plants are best suited to cool,wet conditions?

Accepted Answer

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

Question 19

In the section "Investigating Life: Solar-Powered Sea Slugs",how are algal chloroplasts able to perform photosynthesis in a sea slug?

Accepted Answer

A)  The algal chloroplasts are able to complete only the light reactions of photosynthesis.
B)  The algal chloroplasts are able to complete only the carbon reactions of photosynthesis.
C)  The chloroplasts CANNOT perform photosynthesis if removed from an algal cell.
D)  A gene required for photosynthesis moved from the algal genome to the sea slug genome.
E)  The chloroplasts can function independently of a host cell.

Question 20

In what organelle does photosynthesis take place in algae and plants?

Accepted Answer

A)  chloroplast
B)  mitochondrion
C)  ribosome
D)  chlorophyll
E)  lysosome

Exam 5: Photosynthesis

The main product of the carbon reactions is

Correct Answer
verified

Green and yellow wavelengths of light are useless to most plants.

Correct Answer
verified

The light reactions use ATP as the energy source.

Correct Answer
verified

C₄ plants and CAM plants fix carbon in a larger molecule only once during photosynthetic reactions.

Correct Answer
verified

In what organelle does photosynthesis take place in algae and plants?

Correct Answer
verified

Which plants are best suited to cool,wet conditions?

Correct Answer
verified

For many plants to grow well in hot,dry weather,they must be watered so their stomata will remain open for longer periods of time to let in oxygen.

Correct Answer
verified

Where in a plant do you expect to find the highest concentration of chloroplasts?

Correct Answer
verified

Photosystem I and photosystem II are part of

Correct Answer
verified

Plants are the only organisms that carry out photosynthesis to produce food.

Correct Answer
verified

In the section "Investigating Life: Solar-Powered Sea Slugs",how are algal chloroplasts able to perform photosynthesis in a sea slug?

Correct Answer
verified

The enzyme rubisco combines ribulose bisphosphate with _____ in the first step of the Calvin cycle.

Correct Answer
verified

The electrons flowing through the electron transport chains in photosynthesis originate from and are transported to the carbon reactions by _.

Correct Answer
verified

What happens in photorespiration that is more energetically costly than the Calvin cycle?

Correct Answer
verified

Correct Answer
verified

The main product of photosynthesis used by plants is

Correct Answer
verified

In the carbon reactions,carbon dioxide molecules are reduced by the addition of electrons carried from the light reactions by __________.

Correct Answer
verified

The light reactions use sunlight as the energy source.

Correct Answer
verified

Photosynthesis

Correct Answer
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The energy source of photosynthesis is

Correct Answer
verified

Exam 5: Photosynthesis

The main product of the carbon reactions is

Correct AnswerverifiedShow Answer

Green and yellow wavelengths of light are useless to most plants.

Correct AnswerverifiedShow Answer

The light reactions use ATP as the energy source.

Correct AnswerverifiedShow Answer

C4 plants and CAM plants fix carbon in a larger molecule only once during photosynthetic reactions.

Correct AnswerverifiedShow Answer

In what organelle does photosynthesis take place in algae and plants?

Correct AnswerverifiedShow Answer

Which plants are best suited to cool,wet conditions?

Correct AnswerverifiedShow Answer

For many plants to grow well in hot,dry weather,they must be watered so their stomata will remain open for longer periods of time to let in oxygen.

Correct AnswerverifiedShow Answer

Where in a plant do you expect to find the highest concentration of chloroplasts?

Correct AnswerverifiedShow Answer

Photosystem I and photosystem II are part of

Correct AnswerverifiedShow Answer

Plants are the only organisms that carry out photosynthesis to produce food.

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Solar-Powered Sea Slugs",how are algal chloroplasts able to perform photosynthesis in a sea slug?

Correct AnswerverifiedShow Answer

The enzyme rubisco combines ribulose bisphosphate with _____ in the first step of the Calvin cycle.

Correct AnswerverifiedShow Answer

The electrons flowing through the electron transport chains in photosynthesis originate from ____ and are transported to the carbon reactions by _____.

Correct AnswerverifiedShow Answer

What happens in photorespiration that is more energetically costly than the Calvin cycle?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The main product of photosynthesis used by plants is

Correct AnswerverifiedShow Answer

In the carbon reactions,carbon dioxide molecules are reduced by the addition of electrons carried from the light reactions by __________.

Correct AnswerverifiedShow Answer

The light reactions use sunlight as the energy source.

Correct AnswerverifiedShow Answer

Photosynthesis

Correct AnswerverifiedShow Answer

The energy source of photosynthesis is

Correct AnswerverifiedShow Answer

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C₄ plants and CAM plants fix carbon in a larger molecule only once during photosynthetic reactions.

Correct Answer
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The electrons flowing through the electron transport chains in photosynthesis originate from and are transported to the carbon reactions by _.

Correct Answer
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