Question 1

Why are most plants green?

Accepted Answer

A) Chlorophyll a reflects green light. 
B) Chlorophyll b primarily uses green light as the source of energy for photosynthesis. 
C) Chlorophyll a absorbs green light. 
D) Green helps plants blend into their environment as a sort of camouflage. 
A) Chlorophyll a reflects green light. 
B) Chlorophyll b primarily uses green light as the source of energy for photosynthesis. 
C) Chlorophyll a absorbs green light. 
D) Green helps plants blend into their environment as a sort of camouflage. A

Question 2

Which of the following are produced during the Calvin cycle?

Accepted Answer

A) ATP,NADPH,O2 
B) glucose,ADP,NADP+ 
C) ATP,NADPH,CO2 
D) glucose,ADP,NADP+,CO2 
A) ATP,NADPH,O2 
B) glucose,ADP,NADP+ 
C) ATP,NADPH,CO2 
D) glucose,ADP,NADP+,CO2 B

Question 3

Photosynthetic organisms derive their carbon from

Accepted Answer

A) carbon monoxide. 
B) hydrocarbons. 
C) carbon dioxide. 
D) methane. 
A) carbon monoxide. 
B) hydrocarbons. 
C) carbon dioxide. 
D) methane. C

Question 4

Sunlight is a type of energy.

Accepted Answer

A) electromagnetic 
B) nuclear 
C) kinetic 
D) potential 
A) electromagnetic 
B) nuclear 
C) kinetic 
D) potential

Question 5

In this drawing of a chloroplast,which structure represents the thylakoid membrane?

Accepted Answer

A) structure A 
B) structure B 
C) structure C 
D) structure D 
A) structure A 
B) structure B 
C) structure C 
D) structure D

Question 6

The Calvin cycle constructs ,an energy- rich molecule that a plant cell can then use to make glucose or other organic molecules.

Accepted Answer

A) carbon dioxide 
B) ATP 
C) G3P 
D) NADH 
A) carbon dioxide 
B) ATP 
C) G3P 
D) NADH

Question 7

A redox reaction involves the transfer of

Accepted Answer

A) carbon dioxide. 
B) an electron. 
C) water. 
D) oxygen. 
A) carbon dioxide. 
B) an electron. 
C) water. 
D) oxygen.

Question 8

In most green plants,chloroplasts are

Accepted Answer

A) evenly distributed throughout the entire plant. 
B) concentrated in a zone of leaf tissue called the mesophyll. 
C) concentrated in a portion of the leaf called the stroma. 
D) evenly distributed throughout the leaf tissue. 
A) evenly distributed throughout the entire plant. 
B) concentrated in a zone of leaf tissue called the mesophyll. 
C) concentrated in a portion of the leaf called the stroma. 
D) evenly distributed throughout the leaf tissue.

Question 9

As a result of the cascade of electrons down the electron transport chains of the light reactions,

Accepted Answer

A) NADPH is oxidized to NADP+. 
B) NADP+ is reduced to NADPH. 
C) NADPH is reduced to NADP+. 
D) NADP+ is oxidized to NADPH. 
A) NADPH is oxidized to NADP+. 
B) NADP+ is reduced to NADPH. 
C) NADPH is reduced to NADP+. 
D) NADP+ is oxidized to NADPH.

Question 10

Which of the following is a normal process of photosynthesis that could not occur if all reaction centers were inactivated by a toxin?

Accepted Answer

A) absorption of photons by carotenoids 
B) donation of excited electrons by chlorophyll b to a primary electron acceptor 
C) absorption of photons by chlorophyll b 
D) donation of excited electrons by chlorophyll a to a primary electron acceptor 
A) absorption of photons by carotenoids 
B) donation of excited electrons by chlorophyll b to a primary electron acceptor 
C) absorption of photons by chlorophyll b 
D) donation of excited electrons by chlorophyll a to a primary electron acceptor

Question 11

If you expose a photosynthesizing plant to water that contains both radioactive H and radioactive O,in which of the products of photosynthesis will the radioactive H and O show up?

Accepted Answer

A) H and O both in glucose 
B) H in water; O in glucose 
C) H in glucose; O in water 
D) H in glucose and water; O in O2 
A) H and O both in glucose 
B) H in water; O in glucose 
C) H in glucose; O in water 
D) H in glucose and water; O in O2

Question 12

Which of the following are produced during the light reactions of photosynthesis?

Accepted Answer

A) glucose,ADP,NADP+,CO2 
B) glucose,ADP,NADP+ 
C) ADP,NADP+,O2  
D) ATP,NADPH,O2 
A) glucose,ADP,NADP+,CO2 
B) glucose,ADP,NADP+ 
C) ADP,NADP+,O2  
D) ATP,NADPH,O2

Question 13

ATP and NADPH

Accepted Answer

A) power sugar synthesis during the Calvin cycle. 
B) are products of the Calvin cycle. 
C) are used in the electron transport chain to pump H+ into the thylakoid space. 
D) provide energy to Photosystem I and Photosystem II. 
A) power sugar synthesis during the Calvin cycle. 
B) are products of the Calvin cycle. 
C) are used in the electron transport chain to pump H+ into the thylakoid space. 
D) provide energy to Photosystem I and Photosystem II.

Question 14

Which of the following statements regarding photosynthesis is false?

Accepted Answer

A) Photosynthesis is ultimately powered by light energy and respiration by the chemical energy of fuel molecules. 
B) Photosynthesis produces O2; respiration produces CO2. 
C) Photosynthesis consumes CO2; respiration consumes O2. 
D) ATP is not produced during photosynthesis,but only during cellular respiration. 
A) Photosynthesis is ultimately powered by light energy and respiration by the chemical energy of fuel molecules. 
B) Photosynthesis produces O2; respiration produces CO2. 
C) Photosynthesis consumes CO2; respiration consumes O2. 
D) ATP is not produced during photosynthesis,but only during cellular respiration.

Question 15

In a photosystem,clusters of chlorophyll a,chlorophyll b,and carotenoid pigments function most like

Accepted Answer

A) a propeller on a motorboat. 
B) a windmill. 
C) a spring. 
D) an antenna. 
A) a propeller on a motorboat. 
B) a windmill. 
C) a spring. 
D) an antenna.

Question 16

What is the source of energy that provides the boost for electrons during photosynthesis?

Accepted Answer

A) light 
B) electromagnetism 
C) ATP 
D) cellular respiration 
A) light 
B) electromagnetism 
C) ATP 
D) cellular respiration

Question 17

Which of the following statements concerning the role of redox reactions in photosynthesis and cellular respiration is true?

Accepted Answer

A) Photosynthesis involves only oxidations,while respiration involves only reductions. 
B) In photosynthesis,carbon dioxide is reduced to form sugar,while in respiration,sugar is oxidized to form carbon dioxide. 
C) In photosynthesis,carbon dioxide is oxidized to form sugar,while in respiration,sugar is reduced to form carbon dioxide. 
D) Photosynthesis involves only reductions,while respiration involves only oxidations. 
A) Photosynthesis involves only oxidations,while respiration involves only reductions. 
B) In photosynthesis,carbon dioxide is reduced to form sugar,while in respiration,sugar is oxidized to form carbon dioxide. 
C) In photosynthesis,carbon dioxide is oxidized to form sugar,while in respiration,sugar is reduced to form carbon dioxide. 
D) Photosynthesis involves only reductions,while respiration involves only oxidations.

Question 18

Photoautotrophs

Accepted Answer

A) produce organic molecules from inorganic molecules. 
B) include only the green plants. 
C) eat other organisms that use light energy to make food molecules. 
D) make sugar by using organic raw materials. 
A) produce organic molecules from inorganic molecules. 
B) include only the green plants. 
C) eat other organisms that use light energy to make food molecules. 
D) make sugar by using organic raw materials.

Question 19

The energy that excites P680 and P700 is supplied by

Accepted Answer

A) ATP. 
B) photons. 
C) NADPH. 
D) electrons passing down the electron transport chain. 
A) ATP. 
B) photons. 
C) NADPH. 
D) electrons passing down the electron transport chain.

Question 20

The addition of oxygen instead of carbon dioxide to RuBP results in

Accepted Answer

A) photorespiration. 
B) cellular respiration. 
C) aerobic respiration. 
D) photophosphorylation. 
A) photorespiration. 
B) cellular respiration. 
C) aerobic respiration. 
D) photophosphorylation.

Exam 7: Photosynthesis: Using Light to Make Food

Why are most plants green?

Which of the following are produced during the Calvin cycle?

Photosynthetic organisms derive their carbon from

Sunlight is a type of energy.

In this drawing of a chloroplast,which structure represents the thylakoid membrane?

The Calvin cycle constructs ,an energy- rich molecule that a plant cell can then use to make glucose or other organic molecules.

A redox reaction involves the transfer of

In most green plants,chloroplasts are

As a result of the cascade of electrons down the electron transport chains of the light reactions,

Which of the following is a normal process of photosynthesis that could not occur if all reaction centers were inactivated by a toxin?

If you expose a photosynthesizing plant to water that contains both radioactive H and radioactive O,in which of the products of photosynthesis will the radioactive H and O show up?

Which of the following are produced during the light reactions of photosynthesis?

ATP and NADPH

Which of the following statements regarding photosynthesis is false?

In a photosystem,clusters of chlorophyll a,chlorophyll b,and carotenoid pigments function most like

What is the source of energy that provides the boost for electrons during photosynthesis?

Which of the following statements concerning the role of redox reactions in photosynthesis and cellular respiration is true?

Photoautotrophs

The energy that excites P680 and P700 is supplied by

The addition of oxygen instead of carbon dioxide to RuBP results in

Biology: Exploring Life

The Chemical Basis of Life

The Molecules of Cells

A Tour of the Cell

The Working Cell

How Cells Harvest Chemical Energy

The Cellular Basis of Reproduction and Inheritance

Patterns of Inheritance

Molecular Biology of the Gene

How Genes Are Controlled

Dna Technology and Genomics

How Populations Evolve

The Origin of Species

Tracing Evolutionary History

Microbial Life: Prokaryotes and Protists

The Evolution of Plant and Fungal Diversity

The Evolution of Invertebrate Diversity

The Evolution of Vertebrate Diversity

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Gas Exchange

Circulation

The Immune System

Control of Body Temperature and Water Balance

Hormones and the Endocrine System

Reproduction and Embryonic Development

Nervous Systems

The Senses

How Animals Move

Plant Structure,growth,and Reproduction

Plant Nutrition and Transport

Control Systems in Plants

The Biosphere: an Introduction to Earths Diverse Environments

Behavioral Adaptations to the Environment

Population Ecology

Communities and Ecosystems

Conservation Biology

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