Question 1

Compared with a C3 plant, a C4 plant:

Accepted Answer

A) carries out more photorespiration. 
B) has a lower photosynthetic efficiency. 
C) has more Rubisco. 
D) has a higher leaf nitrogen content. 
E) needs more ATP to fix CO2. 
A) carries out more photorespiration. 
B) has a lower photosynthetic efficiency. 
C) has more Rubisco. 
D) has a higher leaf nitrogen content. 
E) needs more ATP to fix CO2.

Question 2

Which pigment occurs in all photosynthetic eukaryotes?

Accepted Answer

A) Chlorophyll a 
B) Chlorophyll b 
C) Chlorophyll c 
D) Bacteriochlorophyll 
E) Chlorobium chlorophyll 
A) Chlorophyll a 
B) Chlorophyll b 
C) Chlorophyll c 
D) Bacteriochlorophyll 
E) Chlorobium chlorophyll

Question 3

Carbon dioxide is "fixed" by bonding to:

Accepted Answer

A) glyceraldehyde 3-phosphate. 
B) 3-phosphoglycerate. 
C) ribulose 1,5-bisphosphate. 
D) NADP+. 
E) ADP. 
A) glyceraldehyde 3-phosphate. 
B) 3-phosphoglycerate. 
C) ribulose 1,5-bisphosphate. 
D) NADP+. 
E) ADP.

Question 4

Protons flow through the ATP synthesis from the stroma into the thylakoid lumen.

Accepted Answer

A) True 
 B)False

Question 5

Xanthophylls and carotenes:

Accepted Answer

A) are the principal photosynthetic pigments in green plants. 
B) are the principal sources of vitamin C for humans. 
C) are carotenoids. 
D) are normally present in the cytosol rather than in plastids. 
E) can substitute for chlorophylls in photosynthesis. 
A) are the principal photosynthetic pigments in green plants. 
B) are the principal sources of vitamin C for humans. 
C) are carotenoids. 
D) are normally present in the cytosol rather than in plastids. 
E) can substitute for chlorophylls in photosynthesis.

Question 6

Compared with C3 plants, C4 plants:

Accepted Answer

A) are well adapted to low light intensities. 
B) are well adapted to low temperatures. 
C) are well adapted to moist areas. 
D) use nitrogen more efficiently. 
E) fix CO2 less efficiently. 
A) are well adapted to low light intensities. 
B) are well adapted to low temperatures. 
C) are well adapted to moist areas. 
D) use nitrogen more efficiently. 
E) fix CO2 less efficiently.

Question 7

During cyclic electron flow, electrons are transferred directly from P700 to Ao to:

Accepted Answer

A) P700. 
B) P680. 
C) the photosynthetic electron transport chain. 
D) the photosynthetic ATP synthase. 
E) the lumen of the thylakoid. 
A) P700. 
B) P680. 
C) the photosynthetic electron transport chain. 
D) the photosynthetic ATP synthase. 
E) the lumen of the thylakoid.

Compared with a C₃ plant, a C₄ plant:

Which pigment occurs in all photosynthetic eukaryotes?

Carbon dioxide is "fixed" by bonding to:

Protons flow through the ATP synthesis from the stroma into the thylakoid lumen.

Xanthophylls and carotenes:

Compared with C₃ plants, C₄ plants:

During cyclic electron flow, electrons are transferred directly from P₇₀₀ to A_o to:

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

Exam 7: Photosynthesis, Light, and Life

Compared with a C3 plant, a C4 plant:

Which pigment occurs in all photosynthetic eukaryotes?

Carbon dioxide is "fixed" by bonding to:

Protons flow through the ATP synthesis from the stroma into the thylakoid lumen.

Xanthophylls and carotenes:

Compared with C3 plants, C4 plants:

During cyclic electron flow, electrons are transferred directly from P700 to Ao to:

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

Compared with a C₃ plant, a C₄ plant:

Compared with C₃ plants, C₄ plants:

During cyclic electron flow, electrons are transferred directly from P₇₀₀ to A_o to: