Question 1

The two photosystems of light-dependent reactions are designated ____.

Accepted Answer

A)   ​type 1 and type 2
B)   ​type I and type II
C)   ​photosystem A and photosystem B
D)   ​photosystem 680 and photosystem 700
E)   photosystem I and photosystem II​F) C) and E)
G) B) and C)

Question 2

Match the pigment with its relationship to sunlight.​
-causes some fruits and vegetables to appear orange or yellow

Accepted Answer

A)  ​chlorophyll b
B)  ​chlorophyll a
C)  ​phycoerythrobilin
D)  ​phycocyanobilin
E)  ​beta-caroteneF) A) and B)
G) A) and C)

Question 3

Use the figure below to match the pigments with their absorption spectra.​
Figure 6.5C
 
-chlorophyll a

Accepted Answer

A)  ​Peak A
B)  ​Peak B
C)  ​Peak C
D)  ​Peak D
E)  ​Peak EF) All of the above
G) B) and D)

Question 4

Choose the one most appropriate description.
-the formation of glucose

Accepted Answer

A)  incorporation of CO2 into an organic molecule
B)  uses ATP and NADPH
C)  uses two PGAL
D)  produces ATP and NADPH
E)  uses an electron transfer chain to produce ATP, but does not produce NADPH or O2F) D) and E)
G) A) and E)

Question 5

What is formed during the light dependent reactions of photosynthesis?

Accepted Answer

A)   H+ and H₂O
B)   excited electrons and H+
C)   ATP and O₂
D)   O₂ and NADPH
E)   NADPH and ATPF) A) and D)
G) A) and E)

Question 6

The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statement with reference to these five processes.​
-This carbon-fixing system uses CO₂ from inside the plant, and precedes the Calvin-Benson cycle.

Accepted Answer

A)  ​light-dependent reactions
B)  ​CAM pathway
C)  ​carbon fixation
D)  ​Calvin-Benson cycle
E)  ​C₄ pathwayF) C) and E)
G) A) and C)

Question 7

The CAM pathway ____.

Accepted Answer

A)   ​involves only the Calvin-Benson cycle
B)   ​involves only the C₄ cycle
C)   ​is used by plants in humid regions
D)   ​is also known as photorespiration
E)   needs day and night for completion​F) All of the above
G) B) and D)

Question 8

Use the figure below to match the pigments with their absorption spectra.​
Figure 6.5C
 
-beta-carotene

Accepted Answer

A)  ​Peak A
B)  ​Peak B
C)  ​Peak C
D)  ​Peak D
E)  ​Peak EF) A) and C)
G) A) and D)

Question 9

A pigment absorbs a photon if the energy of the photon is ____.

Accepted Answer

A)   ​exactly enough to boost an electron of the pigment to a higher energy level
B)   ​slightly more than the energy of the electron absorbing the photon
C)   ​significantly more than the energy of the electron absorbing the photon
D)   ​exactly twice the energy of the electron absorbing the photon
E)   significantly less than the energy of the electron absorbing the photon​F) A) and B)
G) A) and C)

Question 10

The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statement with reference to these five processes.​
-This is a carbon-fixing system that separates two carbon fixations into night and day activities.

Accepted Answer

A)  ​light-dependent reactions
B)  ​CAM pathway
C)  ​carbon fixation
D)  ​Calvin-Benson cycle
E)  ​C₄ pathwayF) None of the above
G) A) and B)

Question 11

Figure 6.5B
  
Following ​Questions refer to the figure above illustrating the results from Engelmann's investigation.
-According to the figure, the most effective wavelength for photosynthesis is revealed by algae exposed to ____ nanometers.

Accepted Answer

A)   ​680
B)   ​700
C)   ​400
D)   ​425
E)   550​F) D) and E)
G) All of the above

Question 12

Any light-driven reaction that attaches phosphate to a molecule is called ____________________.

Accepted Answer

photophosp...

Question 13

The oxygen released in photosynthesis comes from ____.

Accepted Answer

A)   ​carbon dioxide
B)   ​glucose
C)   ​ribulose bisphosphate
D)   ​water
E)   atmospheric oxygen​F) None of the above
G) A) and B)

Question 14

What is a required input for the light-independent reactions?​

Accepted Answer

A)   ​NADPH
B)   ​phosphoglyceric acid (PG
A)  
C)   ​phosphoglyceraldehyde (PGAL) 
D)   ​glucose
E)   ribulose bisphosphate​F) All of the above
G) D) and E)

Question 15

With regard to photosynthesis, photorespiration ____.

Accepted Answer

A)   ​is more efficient in producing carbohydrates
B)   ​predominates in C₃ plants in cool weather when water is plentiful
C)   ​predominates in C₄ plants on hot days
D)   ​produces the same amount of PGA
E)   is less efficient in producing carbohydrates​F) A) and B)
G) D) and E)

Question 16

The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statement with reference to these five processes.​
-This yields NADPH as well as ATP.

Accepted Answer

A)  ​light-dependent reactions
B)  ​CAM pathway
C)  ​carbon fixation
D)  ​Calvin-Benson cycle
E)  ​C₄ pathwayF) A) and B)
G) A) and C)

Question 17

The first stable compound produced from CO₂ in the light-independent reaction is ____.

Accepted Answer

A)   ​phosphoglycerate (PG
A)  
B)   ​ribulose bisphosphate (RuBP) 
C)   ​phosphoglyceraldehyde (PGAL) 
D)   ​O₂
E)   NADP+​F) A) and E)
G) None of the above

Question 18

The light-independent reactions of photosynthesis ____.

Accepted Answer

A)   ​fix carbon dioxide
B)   ​release oxygen
C)   ​cannot occur in light
D)   ​generate ATP
E)   use ADP​F) All of the above
G) C) and D)

Question 19

Choose the one most appropriate description.
-noncyclic pathway of ATP formation​

Accepted Answer

A)  incorporation of CO2 into an organic molecule
B)  uses ATP and NADPH
C)  uses two PGAL
D)  produces ATP and NADPH
E)  uses an electron transfer chain to produce ATP, but does not produce NADPH or O2F) B) and C)
G) D) and E)

Question 20

Match the pigment with its relationship to sunlight.​
-absorbs only blue light

Accepted Answer

A)  ​chlorophyll b
B)  ​chlorophyll a
C)  ​phycoerythrobilin
D)  ​phycocyanobilin
E)  ​beta-caroteneF) D) and E)
G) C) and E)

Exam 6: Where It Starts - Photosynthesis

With regard to photosynthesis, photorespiration ____.

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The two photosystems of light-dependent reactions are designated ____.

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Figure 6.5B Following ​Questions refer to the figure above illustrating the results from Engelmann's investigation. -According to the figure, the most effective wavelength for photosynthesis is revealed by algae exposed to ____ nanometers.

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Choose the one most appropriate description. -noncyclic pathway of ATP formation​

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The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statement with reference to these five processes.​ -This is a carbon-fixing system that separates two carbon fixations into night and day activities.

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Match the pigment with its relationship to sunlight.​ -causes some fruits and vegetables to appear orange or yellow

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Any light-driven reaction that attaches phosphate to a molecule is called ____________________.

Correct Answerverifiedphotophosp...View AnswerShow Answer

Choose the one most appropriate description. -the formation of glucose

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Use the figure below to match the pigments with their absorption spectra.​ Figure 6.5C -beta-carotene

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The first stable compound produced from CO₂ in the light-independent reaction is ____.

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The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statement with reference to these five processes.​ -This yields NADPH as well as ATP.

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What is formed during the light dependent reactions of photosynthesis?

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A pigment absorbs a photon if the energy of the photon is ____.

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The light-independent reactions of photosynthesis ____.

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Match the pigment with its relationship to sunlight.​ -absorbs only blue light

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The oxygen released in photosynthesis comes from ____.

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The CAM pathway ____.

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Use the figure below to match the pigments with their absorption spectra.​ Figure 6.5C -chlorophyll a

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What is a required input for the light-independent reactions?​

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The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statement with reference to these five processes.​ -This carbon-fixing system uses CO₂ from inside the plant, and precedes the Calvin-Benson cycle.

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Figure 6.5B Following Questions refer to the figure above illustrating the results from Engelmann's investigation. -According to the figure, the most effective wavelength for photosynthesis is revealed by algae exposed to ____ nanometers.

Correct Answer
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Choose the one most appropriate description. -noncyclic pathway of ATP formation

Correct Answer
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The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statement with reference to these five processes. -This is a carbon-fixing system that separates two carbon fixations into night and day activities.

Correct Answer
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Match the pigment with its relationship to sunlight. -causes some fruits and vegetables to appear orange or yellow

Correct Answer
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Correct Answer
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photophosp...
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Use the figure below to match the pigments with their absorption spectra. Figure 6.5C -beta-carotene

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The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statement with reference to these five processes. -This yields NADPH as well as ATP.

Correct Answer
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Correct Answer
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Match the pigment with its relationship to sunlight. -absorbs only blue light

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Use the figure below to match the pigments with their absorption spectra. Figure 6.5C -chlorophyll a

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What is a required input for the light-independent reactions?

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The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statement with reference to these five processes. -This carbon-fixing system uses CO₂ from inside the plant, and precedes the Calvin-Benson cycle.

Correct Answer
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