Question 1

RuBP carboxylase (rubisco) is able to bind with both

Accepted Answer

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

Question 2

Inside the chloroplasts,chlorophyll is found in the

Accepted Answer

A)   mesophyll.
B)   thylakoid space.
C)   thylakoid membrane.
D)   stroma.
E)   cytoplasm.F) B) and E)
G) A) and C)

Question 3

Which of the following organisms can perform photosynthesis?

Accepted Answer

A)   algae
B)   fungi
C)   animals
D)   invertebrates
E)   vertebratesF) A) and D)
G) B) and C)

Question 4

Which of the labeled cells of a C3 leaf does not perform photosynthesis?

Accepted Answer

A)   A and B
B)   A and D
C)   B and D
D)   B and C
E)   C and DF) A) and E)
G) A) and B)

Question 5

Grana are

Accepted Answer

A)   interconnecting stomata.
B)   flattened sacs of thylakoid membrane.
C)   pores that open to allow gas exchange.
D)   the sites of the Calvin cycle and production of sugars.
E)   enzymes that bind CO2.F) B) and E)
G) C) and D)

Question 6

Before being converted into sucrose,starch,or cellulose,G3P must first be converted into which compound?

Accepted Answer

A)   glucose
B)   galactose
C)   glucose phosphate
D)   fructose
E)   3PGF) B) and E)
G) B) and D)

Question 7

A small,low-growing plant found on the surface of a sun-exposed rock on a dry hillside would most likely use which type of photosynthesis?

Accepted Answer

A)   CAM
B)   C3
C)   C4
D)   both C4 and CAM
E)   both C3 and CAMF) C) and E)
G) D) and E)

Question 8

Replacement electrons for the reaction center of photosystem II are derived from

Accepted Answer

A)   H2O.
B)   NADP+.
C)   G3P.
D)   NADPH.
E)   CO2.F) A) and B)
G) B) and C)

Question 9

Which statement is accurate about how C4 plants are able to survive hot dry spells during the growing season?

Accepted Answer

A)   When the stomata close during heat stress RuBP carboxylase is not exposed to the increase in oxygen concentration experienced in the leaf. This allows the plant to avoid trying to use oxygen.
B)   When the stomata close during heat stress RuBP carboxylase is exposed to the increase in oxygen concentration experienced in the leaf. This allows the plant to avoid trying to use oxygen.
C)   When the stomata open during heat stress RuBP carboxylase is not exposed to the increase in oxygen concentration experienced in the leaf. This allows the plant to avoid trying to use oxygen.
D)   When the stomata close during heat stress RuBP carboxylase is exposed to the increase in oxygen concentration experienced in the leaf. This allows the plant to use oxygen for photosynthesis.
E)   When the stomata open during heat stress RuBP carboxylase is not exposed to the increase in oxygen concentration experienced in the leaf. This allows the plant to use oxygen for photosynthesis.F) A) and C)
G) A) and D)

Question 10

What two things are added to NADP+ to convert it into NADPH?

Accepted Answer

A)   H+ and electrons
B)   electrons and ATP
C)   H+ and ATP
D)   H+ and CO2
E)   electrons and CO2F) C) and D)
G) All of the above

Question 11

A new species of plant is discovered and you are asked to help classify it.Upon examination under a microscope,you find that there is a layer of bundle sheath cells containing chloroplasts around the vein of the leaf of the plant.What can you tell about the plant from this?

Accepted Answer

A)   This plant is unlike any other plant that has ever been discovered and is a completely new category of plant.
B)   This plant very likely carries out C4 photosynthesis.
C)   This plant falls into the category of CAM type plants.
D)   This plant uses chemosynthesis rather than photosynthesis.
E)   This is a C3 type of plant.F) D) and E)
G) B) and C)

Question 12

Which of the following is a coenzyme?

Accepted Answer

A)   glyceraldehyde-3-phosphate (G3P) 
B)   chlorophyll a
C)   electron transport protein
D)   rubisco
E)   NADP+F) A) and E)
G) C) and E)

Question 13

How many turns of the Calvin cycle would be required for a plant to make one molecule of glucose?

Accepted Answer

A)   1
B)   2
C)   3
D)   6
E)   12F) A) and D)
G) C) and E)

Question 14

Which stages of the Calvin cycle reactions require the use of energy from ATP?

Accepted Answer

A)   CO2 fixation and CO2 reduction
B)   CO2 reduction and RuBP regeneration
C)   CO2 fixation and RuBP regeneration
D)   CO2 fixation, CO2 reduction, and RuBP regenerationE) None of the above
F) B) and C)

Question 15

The removal of electrons and/or hydrogen atoms from a substrate is called what?

Accepted Answer

A)   oxidation
B)   reduction
C)   phosphorylation
D)   metabolism
E)   an enzyme-substrate complexF) A) and E)
G) A) and C)

Question 16

Why do plants contain other pigments besides chlorophyll?

Accepted Answer

A)   The additional pigments are able to absorb other light wavelengths that chlorophyll cannot.
B)   The additional pigments can only absorb violet or ultraviolet light.
C)   Chlorophyll is unable to absorb visible light.
D)   When chlorophyll breaks down, the additional pigments can absorb the same wavelengths of light.
E)   When the additional pigments break down, the chlorophyll can absorb other wavelengths of light.F) None of the above
G) A) and E)

Question 17

Which steps of photosynthesis does C4 photosynthesis partition in space?

Accepted Answer

A)   carbon fixation and Calvin cycle reactions
B)   carbon fixation and light reactions
C)   light reactions and Calvin cycle reactions
D)   glyceraldehyde-3-phosphate (G3P)  formation and glucose phosphate formation
E)   1,3 bisphosphoglycerate (BPG)  formation and glucose phosphate formationF) A) and B)
G) All of the above

Question 18

The chlorophyll a molecules in the reaction center of a photosystem participate directly in the capture of solar energy.What is the purpose of the accessory pigments?

Accepted Answer

A)   They participate in the Calvin cycle.
B)   They funnel solar energy to chlorophyll a in the reaction center.
C)   They split the water molecule to supply electrons to the chlorophyll a in the reaction center.
D)   They change the color of the leaves to discourage predators.
E)   They have no purpose.F) B) and C)
G) A) and E)

Question 19

The light-harvesting complexes of a chloroplast are located in the ______; the enzymes of the Calvin cycle reactions are located in the _________.

Accepted Answer

A)   thylakoid membrane; stroma
B)   stroma; thylakoid space
C)   thylakoid space; thylakoid membrane
D)   stroma; thylakoid membrane
E)   thylakoid space; stromaF) D) and E)
G) A) and D)

Question 20

The addition of electrons and/or hydrogen atoms to a substrate is called what?

Accepted Answer

A)   reduction
B)   oxidation
C)   phosphorylation
D)   metabolism
E)   an enzyme-substrate complexF) A) and B)
G) A) and C)

Exam 6: Energy for Life

How many turns of the Calvin cycle would be required for a plant to make one molecule of glucose?

Correct AnswerverifiedShow Answer

RuBP carboxylase (rubisco) is able to bind with both

Correct AnswerverifiedShow Answer

Before being converted into sucrose,starch,or cellulose,G3P must first be converted into which compound?

Correct AnswerverifiedShow Answer

Inside the chloroplasts,chlorophyll is found in the

Correct AnswerverifiedShow Answer

What two things are added to NADP+ to convert it into NADPH?

Correct AnswerverifiedShow Answer

The addition of electrons and/or hydrogen atoms to a substrate is called what?

Correct AnswerverifiedShow Answer

A new species of plant is discovered and you are asked to help classify it.Upon examination under a microscope,you find that there is a layer of bundle sheath cells containing chloroplasts around the vein of the leaf of the plant.What can you tell about the plant from this?

Correct AnswerverifiedShow Answer

Why do plants contain other pigments besides chlorophyll?

Correct AnswerverifiedShow Answer

The chlorophyll a molecules in the reaction center of a photosystem participate directly in the capture of solar energy.What is the purpose of the accessory pigments?

Correct AnswerverifiedShow Answer

Grana are

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Which of the following organisms can perform photosynthesis?

Correct AnswerverifiedShow Answer

Which of the labeled cells of a C3 leaf does not perform photosynthesis?

Correct AnswerverifiedShow Answer

Which of the following is a coenzyme?

Correct AnswerverifiedShow Answer

The light-harvesting complexes of a chloroplast are located in the ______; the enzymes of the Calvin cycle reactions are located in the _________.

Correct AnswerverifiedShow Answer

The removal of electrons and/or hydrogen atoms from a substrate is called what?

Correct AnswerverifiedShow Answer

Which steps of photosynthesis does C4 photosynthesis partition in space?

Correct AnswerverifiedShow Answer

Replacement electrons for the reaction center of photosystem II are derived from

Correct AnswerverifiedShow Answer

Which statement is accurate about how C4 plants are able to survive hot dry spells during the growing season?

Correct AnswerverifiedShow Answer

A small,low-growing plant found on the surface of a sun-exposed rock on a dry hillside would most likely use which type of photosynthesis?

Correct AnswerverifiedShow Answer

Which stages of the Calvin cycle reactions require the use of energy from ATP?

Correct AnswerverifiedShow Answer

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What two things are added to NADP⁺ to convert it into NADPH?

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The light-harvesting complexes of a chloroplast are located in the ; the enzymes of the Calvin cycle reactions are located in the ___.

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Which statement is accurate about how C₄ plants are able to survive hot dry spells during the growing season?

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