Question 1

The purple and green bacteria are photosynthetic bacteria that grow only under anaerobic conditions.

Accepted Answer

A) True 
 B)False

Question 2

Psychrophiles are prokaryotes that have very high temperature optima.

Accepted Answer

A) True 
 B)False

Question 3

Which group of archaeans lacks a cell wall?

Accepted Answer

A) mycoplasmas 
B) extreme thermophiles 
C) members of the genus Thermoplasma 
D) extreme halophiles 
E) methanogens 
A) mycoplasmas 
B) extreme thermophiles 
C) members of the genus Thermoplasma 
D) extreme halophiles 
E) methanogens

Question 4

Many species of Archaea are pathogenic to plants.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following statements concerning nanotubes is FALSE?

Accepted Answer

A) They have a plasma membrane. 
B) They are composed of cell wall material. 
C) They contain cytoplasm. 
D) They provide a network for the exchange of molecules. 
E) They are indistinguishable from pili. 
A) They have a plasma membrane. 
B) They are composed of cell wall material. 
C) They contain cytoplasm. 
D) They provide a network for the exchange of molecules. 
E) They are indistinguishable from pili.

Question 6

Which of the following statements about viruses is FALSE?

Accepted Answer

A) Practically every kind of organism can be infected by a virus. 
B) The simplest viruses consist of a nucleic acid surrounded by a capsid. 
C) Some viruses have an RNA genome. 
D) Outside its host cell, a virion has a slow metabolism. 
E) Some viruses contain double-stranded DNA. 
A) Practically every kind of organism can be infected by a virus. 
B) The simplest viruses consist of a nucleic acid surrounded by a capsid. 
C) Some viruses have an RNA genome. 
D) Outside its host cell, a virion has a slow metabolism. 
E) Some viruses contain double-stranded DNA.

Question 7

Prokaryote cells contain a nucleoid but not a nuclear envelope.

Accepted Answer

A) True 
 B)False

Question 8

Movement proteins facilitate the movement of viruses:

Accepted Answer

A) through plasmodesmata. 
B) through vessels. 
C) through sieve tubes. 
D) across the plasma membrane. 
E) across the nuclear envelope. 
A) through plasmodesmata. 
B) through vessels. 
C) through sieve tubes. 
D) across the plasma membrane. 
E) across the nuclear envelope.

Question 9

______ are photosynthetic prokaryotes that contain chlorophylls a and b and carotenoids but lack phycobilins.

Accepted Answer

A) Mycoplasmas 
B) Purple and green bacteria 
C) Mycoplasma-like organisms 
D) Cyanobacteria 
E) Prochlorophytes 
A) Mycoplasmas 
B) Purple and green bacteria 
C) Mycoplasma-like organisms 
D) Cyanobacteria 
E) Prochlorophytes

Question 10

An akinete is a ______ of cyanobacteria.

Accepted Answer

A) photosynthetic pigment 
B) filamentous fragment 
C) storage compound 
D) resistant spore 
E) pigment 
A) photosynthetic pigment 
B) filamentous fragment 
C) storage compound 
D) resistant spore 
E) pigment

Question 11

Which of the following is the uptake of DNA by a prokaryotic cell from its environment?

Accepted Answer

A) binary fission 
B) transduction 
C) transformation 
D) conjugation 
E) budding 
A) binary fission 
B) transduction 
C) transformation 
D) conjugation 
E) budding

Question 12

Bacteriophages are responsible for the process of transformation.

Accepted Answer

A) True 
 B)False

Question 13

In flowering plants, phytoplasmas are generally confined to the xylem.

Accepted Answer

A) True 
 B)False

Question 14

Citrus stubborn disease is caused by a:

Accepted Answer

A) green bacterium. 
B) purple nonsulfur bacterium. 
C) spiroplasma. 
D) cyanobacterium. 
E) prochlorophyte. 
A) green bacterium. 
B) purple nonsulfur bacterium. 
C) spiroplasma. 
D) cyanobacterium. 
E) prochlorophyte.

Question 15

Pseudomonas aeruginosa forms biofilms in the airways of the lungs.

Accepted Answer

A) True 
 B)False

Question 16

______ are probably the smallest organisms capable of independent growth.

Accepted Answer

A) Mycoplasmas 
B) Purple bacteria 
C) Green sulfur bacteria 
D) Cyanobacteria 
E) Prochlorophytes 
A) Mycoplasmas 
B) Purple bacteria 
C) Green sulfur bacteria 
D) Cyanobacteria 
E) Prochlorophytes

Question 17

Bacterial fermentation of lactose is associated with the production of:

Accepted Answer

A) streptomycin. 
B) tetracycline. 
C) cheese. 
D) vinegar. 
E) amino acids. 
A) streptomycin. 
B) tetracycline. 
C) cheese. 
D) vinegar. 
E) amino acids.

Question 18

The oldest known fossils of prokaryotes are found in rocks dated at about ______ years old.

Accepted Answer

A) 3.5 million 
B) 35 million 
C) 350 million 
D) 3.5 billion 
E) 35 billion 
A) 3.5 million 
B) 35 million 
C) 350 million 
D) 3.5 billion 
E) 35 billion

Question 19

A bacillus has a spherical shape.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following statements concerning archaeans is FALSE?

Accepted Answer

A) Some inhabit hostile environments. 
B) Some inhabit soils. 
C) Some are pathogenic. 
D) They are a major component of the oceanic picoplankton. 
E) They can be divided into four groups. 
A) Some inhabit hostile environments. 
B) Some inhabit soils. 
C) Some are pathogenic. 
D) They are a major component of the oceanic picoplankton. 
E) They can be divided into four groups.

Exam 13: Prokaryotes and Viruses

The purple and green bacteria are photosynthetic bacteria that grow only under anaerobic conditions.

Psychrophiles are prokaryotes that have very high temperature optima.

Which group of archaeans lacks a cell wall?

Many species of Archaea are pathogenic to plants.

Which of the following statements concerning nanotubes is FALSE?

Which of the following statements about viruses is FALSE?

Prokaryote cells contain a nucleoid but not a nuclear envelope.

Movement proteins facilitate the movement of viruses:

______ are photosynthetic prokaryotes that contain chlorophylls a and b and carotenoids but lack phycobilins.

An akinete is a ______ of cyanobacteria.

Which of the following is the uptake of DNA by a prokaryotic cell from its environment?

Bacteriophages are responsible for the process of transformation.

In flowering plants, phytoplasmas are generally confined to the xylem.

Citrus stubborn disease is caused by a:

Pseudomonas aeruginosa forms biofilms in the airways of the lungs.

______ are probably the smallest organisms capable of independent growth.

Bacterial fermentation of lactose is associated with the production of:

The oldest known fossils of prokaryotes are found in rocks dated at about ______ years old.

A bacillus has a spherical shape.

Which of the following statements concerning archaeans is FALSE?

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

Photosynthesis, Light, and Life

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

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

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