Question 1

What condition(s) must be met for glucose to be produced during photosynthesis?

Accepted Answer

A)  The concentration of O2 must be significantly higher than that of CO2. 
B)  Mitochondria must convert light energy to ATP. 
C)  NADH and FADH are available. 
D)  The products of light- dependent reactions must be available. 
A)  The concentration of O2 must be significantly higher than that of CO2. 
B)  Mitochondria must convert light energy to ATP. 
C)  NADH and FADH are available. 
D)  The products of light- dependent reactions must be available.

Question 2

If C4 photosynthesis prevents photorespiration, why haven't all plants evolved to use the C4 pathway?

Accepted Answer

A)  C4 produces some toxic by- products. 
B)  C4 is not advantageous in all climates. 
C)  All plants will evolve to be C4 in time. 
D)  C4 is advantageous only in high- oxygen habitats. 
E)  Only some plants use C4 photosynthesis. 
A)  C4 produces some toxic by- products. 
B)  C4 is not advantageous in all climates. 
C)  All plants will evolve to be C4 in time. 
D)  C4 is advantageous only in high- oxygen habitats. 
E)  Only some plants use C4 photosynthesis.

Question 3

Which of the following statements about the light reactions of photosynthesis is FALSE?

Accepted Answer

A)  NADPH becomes oxidized to NADP+. 
B)  Chlorophyll (and other pigments) absorbs light energy, which excites electrons. 
C)  ATP is formed. 
D)  The splitting of water molecules provides a source of electrons. 
E)  An electron transport chain is used to create a proton gradient. 
A)  NADPH becomes oxidized to NADP+. 
B)  Chlorophyll (and other pigments) absorbs light energy, which excites electrons. 
C)  ATP is formed. 
D)  The splitting of water molecules provides a source of electrons. 
E)  An electron transport chain is used to create a proton gradient.

Question 4

Where does the C4 cycle get its name?

Accepted Answer

A)  It is a four- step process. 
B)  The first product in the cycle has four carbons. 
C)  PEP is a four- carbon molecule. 
D)  Only four carbons are used in the cycle. 
E)  Four CO2 molecules are released. 
A)  It is a four- step process. 
B)  The first product in the cycle has four carbons. 
C)  PEP is a four- carbon molecule. 
D)  Only four carbons are used in the cycle. 
E)  Four CO2 molecules are released.

Question 5

In C4 photosynthesis, where does the carbon in newly synthesized glucose come from?

Accepted Answer

A)  Atmospheric CO2 
B)  Water 
C)  Chlorophyll 
D)  ATP and NADPH 
E)  Enzymes 
A)  Atmospheric CO2 
B)  Water 
C)  Chlorophyll 
D)  ATP and NADPH 
E)  Enzymes

Question 6

Albino corn has no chlorophyll. You would expect albino corn seedlings to

Accepted Answer

A)  fail to thrive because they cannot capture light energy. 
B)  capture light energy in the white end of the visible light spectrum. 
C)  synthesize glucose indefinitely, using stored ATP and NADPH. 
D)  switch from the C4 pathway to the crassulacean acid metabolism (CAM) pathway. 
E)  use accessory pigments such as carotenoids to capture light. 
A)  fail to thrive because they cannot capture light energy. 
B)  capture light energy in the white end of the visible light spectrum. 
C)  synthesize glucose indefinitely, using stored ATP and NADPH. 
D)  switch from the C4 pathway to the crassulacean acid metabolism (CAM) pathway. 
E)  use accessory pigments such as carotenoids to capture light.

Question 7

The NADPH required for carbon dioxide fixation during the Calvin cycle is formed

Accepted Answer

A)  only in C4 plants. 
B)  by the reduction of oxygen. 
C)  during the light reactions. 
D)  in the mitochondria. 
E)  by the hydrolysis of ATP. 
A)  only in C4 plants. 
B)  by the reduction of oxygen. 
C)  during the light reactions. 
D)  in the mitochondria. 
E)  by the hydrolysis of ATP.

Question 8

Which of the following statements is TRUE about the light reactions?

Accepted Answer

A)  Photosystem II generates ATP, whereas photosystem I generates NADPH. 
B)  Photosystem I generates ATP, whereas photosystem II generates NADPH. 
C)  ATP is the final electron acceptor. 
D)  NADPH and ATP are both synthesized from the light reactions within photosystem I. 
A)  Photosystem II generates ATP, whereas photosystem I generates NADPH. 
B)  Photosystem I generates ATP, whereas photosystem II generates NADPH. 
C)  ATP is the final electron acceptor. 
D)  NADPH and ATP are both synthesized from the light reactions within photosystem I.

Question 9

Is glucose a direct product of the Calvin cycle? Explain.

Accepted Answer

No; G3P is the carbohydrate pr

Question 10

Carotenoid pigments are found in the

Accepted Answer

A)  nucleus. 
B)  thylakoid membranes of the chloroplasts. 
C)  stroma of the chloroplasts. 
D)  mitochondria. 
A)  nucleus. 
B)  thylakoid membranes of the chloroplasts. 
C)  stroma of the chloroplasts. 
D)  mitochondria.

Question 11

Which process of photosynthesis is directly linked to the production of ATP?

Accepted Answer

A)  Fixing of carbon 
B)  Splitting of a water molecule 
C)  Synthesis of O2 
D)  Photosystem II 
E)  Generation of NADPH 
A)  Fixing of carbon 
B)  Splitting of a water molecule 
C)  Synthesis of O2 
D)  Photosystem II 
E)  Generation of NADPH

Question 12

A pigment that absorbs red and blue light and reflects green light is

Accepted Answer

A)  xanthophyll. 
B)  phycocyanin. 
C)  chlorophyll. 
D)  carotenoid. 
E)  melanin. 
A)  xanthophyll. 
B)  phycocyanin. 
C)  chlorophyll. 
D)  carotenoid. 
E)  melanin.

Question 13

Which sequence accurately describes the flow of electrons in photosynthesis?

Accepted Answer

A)  Photosystem I -photosystem II -H2O -NADP 
B)  H2O -photosystem II -photosystem I -NADP 
C)  Photosystem I -photosystem II -NADP -H2O 
D)  Photosystem II -photosystem I -NADP -H2O 
E)  H2O -photosystem I -photosystem II -NADP 
A)  Photosystem I -photosystem II -H2O -NADP 
B)  H2O -photosystem II -photosystem I -NADP 
C)  Photosystem I -photosystem II -NADP -H2O 
D)  Photosystem II -photosystem I -NADP -H2O 
E)  H2O -photosystem I -photosystem II -NADP

Question 14

In the process of photosynthesis, and formed during the light reactions are required in the Calvin cycle to reduce carbon dioxide to glucose.

Accepted Answer

The answer of In the process of photosynthesis, and formed...

Question 15

The primary function of the light reactions of photosynthesis is to

Accepted Answer

A)  use ATP to make glucose. 
B)  convert light energy to the chemical energy of lipids. 
C)  produce energy- rich ATP and NADPH. 
D)  produce energy- rich glucose from carbon dioxide and water. 
E)  produce NADPH used in respiration. 
A)  use ATP to make glucose. 
B)  convert light energy to the chemical energy of lipids. 
C)  produce energy- rich ATP and NADPH. 
D)  produce energy- rich glucose from carbon dioxide and water. 
E)  produce NADPH used in respiration.

Question 16

During photosynthesis, when is CO2 utilized?

Accepted Answer

A)  During the light reactions only 
B)  During the Calvin cycle only 
C)  During both the light reactions and the Calvin cycle 
D)  During neither the light reactions nor the Calvin cycle 
A)  During the light reactions only 
B)  During the Calvin cycle only 
C)  During both the light reactions and the Calvin cycle 
D)  During neither the light reactions nor the Calvin cycle

Question 17

All of the following are true of biofuels EXCEPT

Accepted Answer

A)  there is concern that using food products as a fuel source will reduce the global food supply and increase food prices. 
B)  demand for biofuels has placed demands on rain- forest lands. 
C)  these are fuels such as methane produced from renewable biological resources such as soybeans and corn. 
D)  the goal of their use is to reduce harmful carbon dioxide emissions. 
E)  biofuels are the only solution to our growing need for fuels in the future. 
A)  there is concern that using food products as a fuel source will reduce the global food supply and increase food prices. 
B)  demand for biofuels has placed demands on rain- forest lands. 
C)  these are fuels such as methane produced from renewable biological resources such as soybeans and corn. 
D)  the goal of their use is to reduce harmful carbon dioxide emissions. 
E)  biofuels are the only solution to our growing need for fuels in the future.

Question 18

Some plants, called the plants, have evolved a way to reduce photorespiration.

Accepted Answer

The answer of Some plants, called the plants, have evolved...

Question 19

The stacked grana are disk- shaped, interconnected membranous sacs embedded in the membrane of the stroma.

Accepted Answer

A) True 
 B)False

Question 20

The vast majority of chloroplasts found in a leaf are in the

Accepted Answer

A)  mesophyll. 
B)  vascular bundles. 
C)  cuticle. 
D)  stroma. 
E)  epidermis. 
A)  mesophyll. 
B)  vascular bundles. 
C)  cuticle. 
D)  stroma. 
E)  epidermis.

Exam 7: Capturing Solar Energy: Photosynthesis

What condition(s) must be met for glucose to be produced during photosynthesis?

If C4 photosynthesis prevents photorespiration, why haven't all plants evolved to use the C4 pathway?

Which of the following statements about the light reactions of photosynthesis is FALSE?

Where does the C4 cycle get its name?

In C4 photosynthesis, where does the carbon in newly synthesized glucose come from?

Albino corn has no chlorophyll. You would expect albino corn seedlings to

The NADPH required for carbon dioxide fixation during the Calvin cycle is formed

Which of the following statements is TRUE about the light reactions?

Is glucose a direct product of the Calvin cycle? Explain.

Carotenoid pigments are found in the

Which process of photosynthesis is directly linked to the production of ATP?

A pigment that absorbs red and blue light and reflects green light is

Which sequence accurately describes the flow of electrons in photosynthesis?

In the process of photosynthesis, and formed during the light reactions are required in the Calvin cycle to reduce carbon dioxide to glucose.

The primary function of the light reactions of photosynthesis is to

During photosynthesis, when is CO2 utilized?

All of the following are true of biofuels EXCEPT

Some plants, called the plants, have evolved a way to reduce photorespiration.

The stacked grana are disk- shaped, interconnected membranous sacs embedded in the membrane of the stroma.

The vast majority of chloroplasts found in a leaf are in the

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity II: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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