Question 1

A chlorophyll molecule has a porphyrin ring containing a single atom of:

Accepted Answer

A)   manganese.
B)   magnesium.
C)   phosphorus.
D)   nitrogen.
E)   iron.F) B) and D)
G) B) and C)

Question 2

Which of the following would be classified as a CAM plant?

Accepted Answer

A)   rose
B)   crocus
C)   orchid
D)   daffodil
E)   chrysanthemumF) A) and B)
G) None of the above

Question 3

By definition, substances that absorb visible light are called:

Accepted Answer

A)   photons.
B)   pigments.
C)   porphyrins.
D)   nucleotides.
E)   hydrocarbons.F) A) and E)
G) A) and B)

Question 4

The photolysis of water occurs in conjunction with photosystem I . 
__________________

Accepted Answer

A) True 
 B)False

Question 5

Most plants are known as photoheterotrophs .

Accepted Answer

A) True 
 B)False

Question 6

Which part of the chlorophyll molecule is responsible for absorbing light?

Accepted Answer

A)   methyl group
B)   porphyrin ring
C)   magnesium ion
D)   phosphate group
E)   long hydrocarbon side chainF) All of the above
G) None of the above

Question 7

In C4 plants, reactions that fix CO2 into four-carbon compounds occur in what type of cells?

Accepted Answer

A)   guard cells
B)   xylem cells
C)   epidermal cells
D)   mesophyll cells
E)   bundle sheath cellsF) A) and B)
G) A) and C)

Question 8

Which process not only yields electrons during photosystem I and II, but also is the source of almost all the oxygen in Earth's atmosphere?

Accepted Answer

A)   glycolysis
B)   photolysis
C)   Calvin cycle
D)   CAM pathway
E)   noncyclic electron transportF) A) and E)
G) B) and D)

Question 9

In which part of the chloroplast do the carbon fixation reactions take place?

Accepted Answer

A)   lumen
B)   stroma
C)   granum
D)   mesophyll
E)   thylakoidsF) A) and E)
G) A) and D)

Question 10

What is the C4 pathway? Briefly explain how this adaptation increases the effectiveness of photosynthesis in these plants.

Accepted Answer

In the C₄ pathway, CO₂ reacts with PEP in ...

Question 11

The part of a chlorophyll molecule that absorbs light energy is the porphyrin ring . 
__________________

Accepted Answer

A) True 
 B)False

Question 12

What is the fluid-filled sac within the inner membrane of a chloroplast called?

Accepted Answer

A)   grana
B)   lumen
C)   stroma
D)   thylakoid
E)   electron acceptorF) B) and C)
G) C) and E)

Question 13

Where is the electron transport chain of photosynthesis located?

Accepted Answer

A)   cristae
B)   mitochondria
C)   chloroplast stroma
D)   thylakoid membrane
E)   outer chloroplast membraneF) A) and B)
G) A) and E)

Question 14

Thylakoid membranes are involved in ____ synthesis.

Accepted Answer

A)   glucose
B)   NADP+
C)   ATP
D)   RuBP
E)   PEPF) B) and E)
G) A) and B)

Question 15

How are chlorophyll molecules attached to thylakoid membranes?

Accepted Answer

A)   by a magnesium ion
B)   with a porphyrin ring
C)   with a methyl group
D)   by a hydroxide group
E)   by a long hydrocarbon side chainF) A) and B)
G) C) and D) E

Question 16

Which is the energy source that drives the Calvin cycle?

Accepted Answer

A)   ATP only
B)   ADP only
C)   G3P only
D)   ADP and G3P
E)   ATP and NADHF) C) and D)
G) B) and D) E

Question 17

A group of thylakoid discs make up what part of a chloroplast?

Accepted Answer

A)   lumen
B)   stroma
C)   granum
D)   vacuole
E)   mesophyll layerF) A) and B)
G) A) and C)

Question 18

What are the two phases of photosynthesis?

Accepted Answer

A)   chemiosmosis and photochemical reactions
B)   carbon reduction reactions and oxidation reactions
C)   light-dependent reactions and carbon fixation reactions
D)   carbon fixation reactions and oxygen fixation reactions
E)   light-independent reactions and carbon fixation reactionsF) C) and E)
G) A) and B) C

Question 19

ATP is generated when protons flow through the cytochrome complex in the thylakoid membrane. 
__________________

Accepted Answer

A) True 
 B)False

Question 20

Engelmann concluded that chlorophyll in the chloroplasts is responsible for photosynthesis based on the which of the following results?

Accepted Answer

A)   Protons flow through the ATP synthase complex.
B)   The action spectrum of photosynthesis matched the maximum production of oxygen by Spirogyra, with the greatest accumulation of bacteria in the blue and red regions of the spectrum.
C)   Bacteria exposed to the action spectrum for photosynthesis showed no preference to any particular color of light.
D)   Accessory pigments transfer some of the energy of excitation produced by green light to chlorophyll molecules.
E)   Spirogyra cells each contain a long, spiral-shaped, emerald-green chloroplast embedded in the cytoplasm.F) D) and E)
G) C) and D)

Exam 9: Photosynthesis Capturing Light Energy

A chlorophyll molecule has a porphyrin ring containing a single atom of:

Correct AnswerverifiedShow Answer

Which of the following would be classified as a CAM plant?

Correct AnswerverifiedShow Answer

By definition, substances that absorb visible light are called:

Correct AnswerverifiedShow Answer

The photolysis of water occurs in conjunction with photosystem I . __________________

Correct AnswerverifiedShow Answer

Most plants are known as photoheterotrophs .

Correct AnswerverifiedShow Answer

Which part of the chlorophyll molecule is responsible for absorbing light?

Correct AnswerverifiedShow Answer

In C4 plants, reactions that fix CO2 into four-carbon compounds occur in what type of cells?

Correct AnswerverifiedShow Answer

Which process not only yields electrons during photosystem I and II, but also is the source of almost all the oxygen in Earth's atmosphere?

Correct AnswerverifiedShow Answer

In which part of the chloroplast do the carbon fixation reactions take place?

Correct AnswerverifiedShow Answer

What is the C4 pathway? Briefly explain how this adaptation increases the effectiveness of photosynthesis in these plants.

Correct AnswerverifiedIn the C4 pathway, CO2 reacts with PEP in ...View AnswerShow Answer

The part of a chlorophyll molecule that absorbs light energy is the porphyrin ring . __________________

Correct AnswerverifiedShow Answer

What is the fluid-filled sac within the inner membrane of a chloroplast called?

Correct AnswerverifiedShow Answer

Where is the electron transport chain of photosynthesis located?

Correct AnswerverifiedShow Answer

Thylakoid membranes are involved in ____ synthesis.

Correct AnswerverifiedShow Answer

How are chlorophyll molecules attached to thylakoid membranes?

Correct AnswerverifiedE

Which is the energy source that drives the Calvin cycle?

Correct AnswerverifiedE

A group of thylakoid discs make up what part of a chloroplast?

Correct AnswerverifiedShow Answer

What are the two phases of photosynthesis?

Correct AnswerverifiedC

ATP is generated when protons flow through the cytochrome complex in the thylakoid membrane. __________________

Correct AnswerverifiedShow Answer

Engelmann concluded that chlorophyll in the chloroplasts is responsible for photosynthesis based on the which of the following results?

Correct AnswerverifiedShow Answer

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In C₄ plants, reactions that fix CO₂ into four-carbon compounds occur in what type of cells?

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What is the C₄ pathway? Briefly explain how this adaptation increases the effectiveness of photosynthesis in these plants.

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In the C₄ pathway, CO₂ reacts with PEP in ...
View Answer

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E

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E

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C

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