Question 1

Engelmann (1883) determined the wavelengths of light that plants could use most effectively.He used a green algae and __________ to obtain his results.

Accepted Answer

A)  another green algae
B)  anaerobic bacteria
C)  aerobic bacteria
D)  radioactive isotopes
E)  a mass spectrometerF) A) and B)
G) C) and D) C

Question 2

Carbon fixation occurs during the dark reactions,or _____________,in photosynthesis.

Accepted Answer

A)  glycolysis
B)  metabolism
C)  respiration
D)  the Calvin cycleE) C) and D)
F) B) and C)

Question 3

Each pigment molecule has a characteristic ________ spectrum.

Accepted Answer

A)  pigment
B)  absorption
C)  emission
D)  energyE) B) and C)
F) A) and D)

Question 4

Describe the conflict between a plant's need to undergo photosynthesis and its need to conserve water when it is in short supply.Briefly state how plants overcome this problem.

Accepted Answer

A)  For photosynthesis to occur,plants need to take in O2 and release CO2.Plants accomplish this task by opening and closing the stomata on their leaves.Each time the stomata are open,however,plants also lose water vapor.If water is in short supply,this loss can decrease the rate of photosynthesis.To overcome this problem,plants undergo respiration.
B)  For photosynthesis to occur,plants need to take in CO2 and release O2.Plants accomplish this task by opening and closing the stomata on their leaves.Each time the stomata are open,however,plants also lose water vapor.If water is in short supply,this loss can decrease the rate of photosynthesis.To overcome this problem,plants undergo photorespiration.
C)  For photosynthesis to occur,plants need to take in CO2 and release O2.Plants accomplish this task by opening and closing the stomata on their leaves.Each time the stomata are open,however,plants gain water.This gain can decrease the rate of photosynthesis.To overcome this problem,plants undergo transpiration.D) All of the above
E) A) and B)

Question 5

You are working to isolate pigments from a cyanobacteria species recovered from the ocean floor.Which of the following would you most likely expect to find?

Accepted Answer

A)  chlorophyll a
B)  chlorophyll b
C)  phycobiloproteins
D)  carotenoidsE) A) and B)
F) B) and C)

Question 6

Which of the following scientists is not associated with studies on photosynthesis?

Accepted Answer

A)  Blackman
B)  Jan Ingenhousz
C)  Krebs
D)  Calvin
E)  Van NielF) None of the above
G) B) and E)

Question 7

CO2 is released without the production of ATP or NADPH.This process is called

Accepted Answer

A)  carbon fixation.
B)  oxygen fixation.
C)  photophosphorylation.
D)  photorespiration.
E)  photooxidation.F) B) and D)
G) D) and E)

Question 8

Which of the following statements supports the fact that chlorophyll a is not the only pigment involved in photosynthesis?

Accepted Answer

A)  The rate of photosynthesis is low at wavelengths when the absorption by chlorophyll a is high.
B)  The rate of photosynthesis is high at wavelengths when the absorption by chlorophyll a is low.
C)  The rate of photosynthesis is low at wavelengths when the absorption by chlorophyll a is low.
D)  The rate of photosynthesis is high at wavelengths when the absorption by chlorophyll a is high.E) B) and C)
F) A) and C)

Question 9

What products of light reactions of photosynthesis are used in the Calvin cycle?

Accepted Answer

A)  oxygen and protons
B)  carbon dioxide and water
C)  ATP and NADPH
D)  ADP and NADP
E)  glucose and oxygenF) None of the above
G) B) and D)

Question 10

A method devised by succulent desert plants to reduce the problem of photorespiration is

Accepted Answer

A)  the C3 pathway.
B)  the CAM metabolism.
C)  the Calvin cycle.
D)  light reactions.
E)  nitrogen fixation.F) B) and C)
G) A) and E)

Question 11

Shortest wavelength and highest-energy photons within the visible spectrum;one of the regions where chlorophylls absorb.

Accepted Answer

A)  green
B)  violet-blue
C)  red
D)  ultraviolet
E)  yellow-orangeF) A) and B)
G) C) and D)

Question 12

In the _____ reactions of photosynthesis,electron carrier molecules are reduced and ATP is synthesized.

Accepted Answer

A)  light
B)  dark
C)  energetic
D)  chemicalE) A) and D)
F) None of the above A

Question 13

Apparent color of chlorophylls.

Accepted Answer

A)  green
B)  violet-blue
C)  red
D)  ultraviolet
E)  yellow-orangeF) B) and D)
G) C) and E)

Question 14

The ______ plants utilize a specialized carbon fixation enzyme and a unique cell structure to reduce the problems of photorespiration.

Accepted Answer

A)  C3
B)  C4
C)  desert
D)  arcticE) None of the above
F) C) and D)

Question 15

The plant hormone abscisic acid (ABA) is involved in the regulation of photorespiration.Based on this information,ABA likely plays a role in

Accepted Answer

A)  the opening and closing of stomatA.
B)  the photoelectric effect.
C)  cyclic photophosphorylation.
D)  noncyclic photophosphorylation.E) None of the above
F) A) and C)

Question 16

Plants and algae use a two-stage _________ in the light dependent reactions.

Accepted Answer

A)  photosystem
B)  pigment
C)  emission
D)  electronE) None of the above
F) A) and B)

Question 17

In green plant photosynthesis,the electron donor for the light dependent reaction is

Accepted Answer

A)  carbon dioxide.
B)  oxygen.
C)  RuBP.
D)  chlorophyll II.
E)  water.F) A) and B)
G) D) and E) E

Question 18

In eukaryotes,photosynthesis takes place inside the _________.

Accepted Answer

A)  chloroplasts
B)  mitochondria
C)  cytoplasm
D)  Golgi apparatusE) A) and B)
F) All of the above

Question 19

Light consists of units of energy called

Accepted Answer

A)  electrons.
B)  photons.
C)  protons.
D)  neutrons.
E)  pigments.F) B) and C)
G) A) and E)

Question 20

Jean Baptista van Helmont performed an experiment in which he planted a small willow tree in a pot of soil,after weighing both the plant and the soil.He watered the plant regularly.At the conclusion of the experiment five years later,the weight of the tree increased by 74.4 kg,while weight of the soil decreased by 57 kg.The primary source of the increased weight (mass) of the plant is from

Accepted Answer

A)  oxygen in the air.
B)  carbohydrates absorbed through the roots.
C)  the water he added.
D)  CO2 in the air.E) B) and C)
F) None of the above

Exam 8: Photosynthesis

Engelmann (1883) determined the wavelengths of light that plants could use most effectively.He used a green algae and __________ to obtain his results.

Correct Answer
verified
C

Carbon fixation occurs during the dark reactions,or _____________,in photosynthesis.

Correct Answer
verified

Each pigment molecule has a characteristic ________ spectrum.

Correct Answer
verified

Describe the conflict between a plant's need to undergo photosynthesis and its need to conserve water when it is in short supply.Briefly state how plants overcome this problem.

Correct Answer
verified

You are working to isolate pigments from a cyanobacteria species recovered from the ocean floor.Which of the following would you most likely expect to find?

Correct Answer
verified

Which of the following scientists is not associated with studies on photosynthesis?

Correct Answer
verified

CO₂ is released without the production of ATP or NADPH.This process is called

Correct Answer
verified

Which of the following statements supports the fact that chlorophyll a is not the only pigment involved in photosynthesis?

Correct Answer
verified

What products of light reactions of photosynthesis are used in the Calvin cycle?

Correct Answer
verified

A method devised by succulent desert plants to reduce the problem of photorespiration is

Correct Answer
verified

Shortest wavelength and highest-energy photons within the visible spectrum;one of the regions where chlorophylls absorb.

Correct Answer
verified

In the _____ reactions of photosynthesis,electron carrier molecules are reduced and ATP is synthesized.

Correct Answer
verified
A

Apparent color of chlorophylls.

Correct Answer
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The ______ plants utilize a specialized carbon fixation enzyme and a unique cell structure to reduce the problems of photorespiration.

Correct Answer
verified

The plant hormone abscisic acid (ABA) is involved in the regulation of photorespiration.Based on this information,ABA likely plays a role in

Correct Answer
verified

Plants and algae use a two-stage _________ in the light dependent reactions.

Correct Answer
verified

In green plant photosynthesis,the electron donor for the light dependent reaction is

Correct Answer
verified
E

In eukaryotes,photosynthesis takes place inside the _________.

Correct Answer
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Light consists of units of energy called

Correct Answer
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Exam 8: Photosynthesis

Engelmann (1883) determined the wavelengths of light that plants could use most effectively.He used a green algae and __________ to obtain his results.

Correct AnswerverifiedC

Carbon fixation occurs during the dark reactions,or _____________,in photosynthesis.

Correct AnswerverifiedShow Answer

Each pigment molecule has a characteristic ________ spectrum.

Correct AnswerverifiedShow Answer

Describe the conflict between a plant's need to undergo photosynthesis and its need to conserve water when it is in short supply.Briefly state how plants overcome this problem.

Correct AnswerverifiedShow Answer

You are working to isolate pigments from a cyanobacteria species recovered from the ocean floor.Which of the following would you most likely expect to find?

Correct AnswerverifiedShow Answer

Which of the following scientists is not associated with studies on photosynthesis?

Correct AnswerverifiedShow Answer

CO2 is released without the production of ATP or NADPH.This process is called

Correct AnswerverifiedShow Answer

Which of the following statements supports the fact that chlorophyll a is not the only pigment involved in photosynthesis?

Correct AnswerverifiedShow Answer

What products of light reactions of photosynthesis are used in the Calvin cycle?

Correct AnswerverifiedShow Answer

A method devised by succulent desert plants to reduce the problem of photorespiration is

Correct AnswerverifiedShow Answer

Shortest wavelength and highest-energy photons within the visible spectrum;one of the regions where chlorophylls absorb.

Correct AnswerverifiedShow Answer

In the _____ reactions of photosynthesis,electron carrier molecules are reduced and ATP is synthesized.

Correct AnswerverifiedA

Apparent color of chlorophylls.

Correct AnswerverifiedShow Answer

The ______ plants utilize a specialized carbon fixation enzyme and a unique cell structure to reduce the problems of photorespiration.

Correct AnswerverifiedShow Answer

The plant hormone abscisic acid (ABA) is involved in the regulation of photorespiration.Based on this information,ABA likely plays a role in

Correct AnswerverifiedShow Answer

Plants and algae use a two-stage _________ in the light dependent reactions.

Correct AnswerverifiedShow Answer

In green plant photosynthesis,the electron donor for the light dependent reaction is

Correct AnswerverifiedE

In eukaryotes,photosynthesis takes place inside the _________.

Correct AnswerverifiedShow Answer

Light consists of units of energy called

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct Answer
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C

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CO₂ is released without the production of ATP or NADPH.This process is called

Correct Answer
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Correct Answer
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A

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E

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