Question 1

In C4 plants, the light reactions will stop during the daytime when the supply of what compound is limited?

Accepted Answer

A)   chlorophyll a
B)   NADP+
C)   H2O
D)   CO2
E)   O2F) A) and D)
G) C) and E)

Question 2

ATP synthase derives energy for the generation of ATP from

Accepted Answer

A)   the movement of hydrogen ions against their concentration gradient into the thylakoid space.
B)   the splitting of H2O, which releases electrons.
C)   solar energy captured by the light reactions changing the shape of the enzyme.
D)   electrons transferred from NADPH causing the enzyme to change shape.
E)   the movement of hydrogen ions down their concentration gradient from the thylakoid space to the stroma.F) A) and B)
G) B) and D) E

Question 3

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 oxygenConcentration 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 oxygenConcentration 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 oxygenF) A) and D)
G) A) and C)

Question 4

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 E)

Question 5

Which of the following is not derived from G3P?

Accepted Answer

A)   starch
B)   cellulose
C)   glucose phosphate
D)   NADP+
E)   sucroseF) A) and C)
G) C) and E)

Question 6

Which complex or enzyme of photosynthesis splits H2O?

Accepted Answer

A)   photosystem I
B)   photosystem II
C)   rubisco
D)   electron transport chain
E)   ATP synthaseF) B) and D)
G) A) and B)

Question 7

In which of the labeled cells of a C4 leaf are the Calvin cycle reactions performed? 4 leaf are the Calvin cycle reactions performed?   A)  A and B B)  B and C C)  A and D D)  B only E)  C only" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   A and B
B)   B and C
C)   A and D
D)   B only
E)   C onlyF) D) and E)
G) None of the above

Question 8

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) A) and B)
G) A) and C)

Question 9

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 information?

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) C) and D)
G) A) and E)

Question 10

The innermost compartment of a chloroplast formed by the interconnected thylakoids is the

Accepted Answer

A)   stroma.
B)   thylakoid membrane.
C)   chlorophyll.
D)   thylakoid space.
E)   leaf space.F) B) and D)
G) None of the above D

Question 11

As climate change leads to drier and drier summers in the southeastern United States, more and more homeowners find that they have crabgrass growing in their yards. The reason for this is that

Accepted Answer

A)   crabgrass is a type of cactus, so it grows better in dry climates.
B)   as the climate changes, homeowners are not caring for their yards as well.
C)   crabgrass is a tropical plant that likes hot, dry climates.
D)   crabgrass is a type of C3 plant that does well in dry climates.
E)   crabgrass is a type of C4 plant that does well in dry climates.F) A) and C)
G) B) and E)

Question 12

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) B) and E)
G) A) and D)

Question 13

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) B) and D)
G) C) and D)

Question 14

In a redox reaction, reduction means ________, and oxidation means ________.

Accepted Answer

A)   loss of electrons; gain of electrons
B)   gain of water; loss of water
C)   gain of electrons; loss of electrons
D)   loss of water; gain of water
E)   gain of protons; loss of protonsF) None of the above
G) A) and C)

Question 15

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) A) and C)
G) B) and C)

Question 16

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 E)
G) B) and D)

Question 17

The enzyme-rich solution found within the chloroplast is called the

Accepted Answer

A)   granum.
B)   chlorophyll.
C)   cytoplasm.
D)   stroma.
E)   christaeF) C) and D)
G) A) and D)

Question 18

Chlorophyll is to the light reactions as ________ is to the Calvin cycle.

Accepted Answer

A)   NADP+
B)   carbon dioxide
C)   ATP
D)   ATP synthase
E)   RuBPF) A) and B)
G) B) and D)

Question 19

The function of a photosystem is to

Accepted Answer

A)   split water to release electrons.
B)   funnel electrons to a central chlorophyll a molecule.
C)   produce NADPH.
D)   give off oxygen when stimulated by light.
E)   combine hydrogen ions with an electron to form water.F) C) and E)
G) B) and C)

Question 20

During photosynthesis, ________ is oxidized, while ________ is reduced.

Accepted Answer

A)   water; carbon dioxide
B)   carbon dioxide; water
C)   carbohydrate; carbon dioxide
D)   carbon dioxide; carbohydrate
E)   carbon dioxide; oxygenF) A) and B)
G) A) and C) A

Exam 6: Energy for Life

In C4 plants, the light reactions will stop during the daytime when the supply of what compound is limited?

Correct AnswerverifiedShow Answer

ATP synthase derives energy for the generation of ATP from

Correct AnswerverifiedE

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

Correct AnswerverifiedShow Answer

RuBP carboxylase rubisco) is able to bind with both

Correct AnswerverifiedShow Answer

Which of the following is not derived from G3P?

Correct AnswerverifiedShow Answer

Which complex or enzyme of photosynthesis splits H2O?

Correct AnswerverifiedShow Answer

In which of the labeled cells of a C4 leaf are the Calvin cycle reactions performed?

Correct AnswerverifiedShow Answer

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

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 information?

Correct AnswerverifiedShow Answer

The innermost compartment of a chloroplast formed by the interconnected thylakoids is the

Correct AnswerverifiedD

As climate change leads to drier and drier summers in the southeastern United States, more and more homeowners find that they have crabgrass growing in their yards. The reason for this is that

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

In a redox reaction, reduction means ________, and oxidation means ________.

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

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

Correct AnswerverifiedShow Answer

The enzyme-rich solution found within the chloroplast is called the

Correct AnswerverifiedShow Answer

Chlorophyll is to the light reactions as ________ is to the Calvin cycle.

Correct AnswerverifiedShow Answer

The function of a photosystem is to

Correct AnswerverifiedShow Answer

During photosynthesis, ________ is oxidized, while ________ is reduced.

Correct AnswerverifiedA

In C₄ plants, the light reactions will stop during the daytime when the supply of what compound is limited?

Correct Answer
verified

Correct Answer
verified
E

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

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Which complex or enzyme of photosynthesis splits H₂O?

Correct Answer
verified

In which of the labeled cells of a C₄ leaf are the Calvin cycle reactions performed?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

In a redox reaction, reduction means , and oxidation means .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

During photosynthesis, is oxidized, while is reduced.

Correct Answer
verified
A