Question 1

Phycobilins are water-soluble accessory pigments found in cyanobacteria and red algae.

Accepted Answer

A) True 
 B)False  True

Question 2

The cytochrome b6/f complex links Photosystems II and I.

Accepted Answer

A) True 
 B)False  True

Question 3

The energy-transduction reactions of photosynthesis are also called the ______ reactions.

Accepted Answer

A) light 
B) dark 
C) light-independent 
D) carbon-fixation 
E) biosynthetic 
A) light 
B) dark 
C) light-independent 
D) carbon-fixation 
E) biosynthetic A

Question 4

Which of the following statements about an antenna complex is FALSE?

Accepted Answer

A) It is part of a photosystem. 
B) It "funnels" energy to the reaction center. 
C) It contains chlorophyll molecules. 
D) It contains carotenoid pigments. 
E) It converts light energy into chemical energy. 
A) It is part of a photosystem. 
B) It "funnels" energy to the reaction center. 
C) It contains chlorophyll molecules. 
D) It contains carotenoid pigments. 
E) It converts light energy into chemical energy.

Question 5

In contrast to Photosystem I, Photosystem II is located primarily:

Accepted Answer

A) in the chloroplast. 
B) in the cytosol. 
C) in grana thylakoids. 
D) in stroma thylokoids 
E) in the plasma membrane. 
A) in the chloroplast. 
B) in the cytosol. 
C) in grana thylakoids. 
D) in stroma thylokoids 
E) in the plasma membrane.

Question 6

Who provided the first experimental evidence that soil alone does not nourish the plant?

Accepted Answer

A) Jan Ingenhousz 
B) Aristotle 
C) F.F.Blackman 
D) Joseph Priestley 
E) Jan Baptista van Helmont 
A) Jan Ingenhousz 
B) Aristotle 
C) F.F.Blackman 
D) Joseph Priestley 
E) Jan Baptista van Helmont

Question 7

Which of the following statements about CAM plants is FALSE?

Accepted Answer

A) Not all CAM plants are succulent. 
B) All CAM plants are flowering plants. 
C) They use both C3 and C4 pathways. 
D) They are dependent on nighttime accumulation of CO2 for photosynthesis. 
E) Their water-use efficiency is higher than that of C3 and C4 plants. 
A) Not all CAM plants are succulent. 
B) All CAM plants are flowering plants. 
C) They use both C3 and C4 pathways. 
D) They are dependent on nighttime accumulation of CO2 for photosynthesis. 
E) Their water-use efficiency is higher than that of C3 and C4 plants.

Question 8

The photolysis of water occurs in conjunction with Photosystem II but not Photosystem I.

Accepted Answer

A) True 
 B)False

Question 9

Suaeda aralocaspica is different from many other C4 plants because it:

Accepted Answer

A) has only one type of chloroplast. 
B) has Kranz anatomy. 
C) lacks Kranz anatomy. 
D) has bundle-sheath cells. 
E) lacks bundle-sheath cells. 
A) has only one type of chloroplast. 
B) has Kranz anatomy. 
C) lacks Kranz anatomy. 
D) has bundle-sheath cells. 
E) lacks bundle-sheath cells.

Question 10

Accessory pigments are directly involved in the energy-transduction processes of photosynthesis.

Accepted Answer

A) True 
 B)False

Question 11

Some CAM plants can keep their stomata closed night and day.

Accepted Answer

A) True 
 B)False

Question 12

In the process of cyclic photophosphorylation, both ATP and NADPH are produced.

Accepted Answer

A) True 
 B)False

Question 13

Kranz anatomy is characterized by a layer of ____ around a layer of ____.

Accepted Answer

A) xylem cells; mesophyll cells 
B) mesophyll cells; bundle-sheath cells 
C) mesophyll cells; phloem cells 
D) bundle-sheath cells; phloem cells 
E) bundle-sheath cells; mesophyll cells 
A) xylem cells; mesophyll cells 
B) mesophyll cells; bundle-sheath cells 
C) mesophyll cells; phloem cells 
D) bundle-sheath cells; phloem cells 
E) bundle-sheath cells; mesophyll cells

Question 14

The energy of a photon of light is directly proportional to its wavelength.

Accepted Answer

A) True 
 B)False

Question 15

At the reaction center of Photosystem II is P700.

Accepted Answer

A) True 
 B)False

Question 16

Rubisco can use either O2 or CO2 as a substrate.

Accepted Answer

A) True 
 B)False

Question 17

The malate or aspartate produced in the C4 pathway moves next into:

Accepted Answer

A) the bundle-sheath cells. 
B) the mesophyll cells. 
C) the stomata. 
D) Photosystem I. 
E) Photosystem II. 
A) the bundle-sheath cells. 
B) the mesophyll cells. 
C) the stomata. 
D) Photosystem I. 
E) Photosystem II.

Question 18

Photorespiration is an energetically wasteful process that seldom occurs in nature.

Accepted Answer

A) True 
 B)False

Question 19

In the C4 pathway, the enzyme PEP carboxylase:

Accepted Answer

A) uses O2 as a substrate. 
B) uses CO2 as a substrate. 
C) operates inefficiently when the CO2 concentration is low. 
D) is active only in the chloroplasts of mesophyll cells. 
E) catalyzes the formation of oxaloacetate. 
A) uses O2 as a substrate. 
B) uses CO2 as a substrate. 
C) operates inefficiently when the CO2 concentration is low. 
D) is active only in the chloroplasts of mesophyll cells. 
E) catalyzes the formation of oxaloacetate.

Question 20

The role of Rubisco is to catalyze the conversion of:

Accepted Answer

A) CO2 to an unstable six-carbon compound. 
B) CO2 to glyceraldehyde 3-phosphate. 
C) 3-phosphoglycerate to glyceraldehyde 3-phosphate. 
D) glyceraldehyde 3-phosphate to sucrose. 
E) glyceraldehyde 3-phosphate to starch. 
A) CO2 to an unstable six-carbon compound. 
B) CO2 to glyceraldehyde 3-phosphate. 
C) 3-phosphoglycerate to glyceraldehyde 3-phosphate. 
D) glyceraldehyde 3-phosphate to sucrose. 
E) glyceraldehyde 3-phosphate to starch.

Exam 7: Photosynthesis, Light, and Life

Phycobilins are water-soluble accessory pigments found in cyanobacteria and red algae.

The cytochrome b6/f complex links Photosystems II and I.

The energy-transduction reactions of photosynthesis are also called the ______ reactions.

Which of the following statements about an antenna complex is FALSE?

In contrast to Photosystem I, Photosystem II is located primarily:

Who provided the first experimental evidence that soil alone does not nourish the plant?

Which of the following statements about CAM plants is FALSE?

The photolysis of water occurs in conjunction with Photosystem II but not Photosystem I.

Suaeda aralocaspica is different from many other C4 plants because it:

Accessory pigments are directly involved in the energy-transduction processes of photosynthesis.

Some CAM plants can keep their stomata closed night and day.

In the process of cyclic photophosphorylation, both ATP and NADPH are produced.

Kranz anatomy is characterized by a layer of ____ around a layer of ____.

The energy of a photon of light is directly proportional to its wavelength.

At the reaction center of Photosystem II is P700.

Rubisco can use either O2 or CO2 as a substrate.

The malate or aspartate produced in the C4 pathway moves next into:

Photorespiration is an energetically wasteful process that seldom occurs in nature.

In the C4 pathway, the enzyme PEP carboxylase:

The role of Rubisco is to catalyze the conversion of:

Botany: an Introduction

The Molecular Composition of Plant Cells

The Plant Cell and the Cell Cycle

The Movement of Substances Into and Out of Cells

The Flow of Energy

Respiration

Sexual Reproduction and Heredity

The Chemistry of Heredity and Gene Expression

Recombinant Dna Technology, Plant Biotechnology, and Genomics

The Process of Evolution

Systematics: the Science of Biological Diversity

Prokaryotes and Viruses

Fungi

Protists: Algae and Heterotrophic Protists

Bryophytes

Seedless Vascular Plants

Gymnosperms

Introduction to the Angiosperms

Evolution of the Angiosperms

Plants and People

Early Development of the Plant Body

Cells and Tissues of the Plant Body

The Root: Structure and Development

The Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

Plant Nutrition and Soils

The Movement of Water and Solutes in Plants

The Dynamics of Communities and Ecosystems

Global Ecology

Filters

The cytochrome b₆/f complex links Photosystems II and I.

Suaeda aralocaspica is different from many other C₄ plants because it:

Kranz anatomy is characterized by a layer of around a layer of .

At the reaction center of Photosystem II is P₇₀₀.

Rubisco can use either O₂ or CO₂ as a substrate.

The malate or aspartate produced in the C₄ pathway moves next into:

In the C₄ pathway, the enzyme PEP carboxylase: