Question 1

A friend tells you she "hates" bacteria and declares her intention to eradicate all bacteria from her home. What do you tell her?

Accepted Answer

This effort to eradicate all bacteria wi

Question 2

Which of the following is not caused by a negative-sense single-stranded RNA virus?

Accepted Answer

A)  Measles 
B)  Shingles 
C)  Rabies 
D)  Influenza 
E)  Mumps 
A)  Measles 
B)  Shingles 
C)  Rabies 
D)  Influenza 
E)  Mumps

Question 3

Which of the following bacterial groups includes the greatest number of species?

Accepted Answer

A)  Chlamydias 
B)  Proteobacteria 
C)  Actinobacteria 
D)  Mycoplasmas 
E)  Cyanobacteria 
A)  Chlamydias 
B)  Proteobacteria 
C)  Actinobacteria 
D)  Mycoplasmas 
E)  Cyanobacteria

Question 4

Some species of Euryarchaeota

Accepted Answer

A)  can make ATP in the light. 
B)  can reduce CO2 to methane. 
C)  are obligate anerobes. 
D)  require NaCl in high concentrations to survive. 
E)  All of the above 
A)  can make ATP in the light. 
B)  can reduce CO2 to methane. 
C)  are obligate anerobes. 
D)  require NaCl in high concentrations to survive. 
E)  All of the above

Question 5

Cyanobacteria

Accepted Answer

A)  are a diverse, unrelated group of bacteria. 
B)  use chlorophyll a and release oxygen during photosynthesis. 
C)  are the only group of photosynthetic bacteria. 
D)  can reproduce sexually. 
E)  are obligate aerobes. 
A)  are a diverse, unrelated group of bacteria. 
B)  use chlorophyll a and release oxygen during photosynthesis. 
C)  are the only group of photosynthetic bacteria. 
D)  can reproduce sexually. 
E)  are obligate aerobes.

Question 6

Actinobacteria

Accepted Answer

A)  are photoheterotrophs. 
B)  are the source of many important antibiotics. 
C)  are Gram-negative bacteria. 
D)  were once classified as protists. 
E)  are the only bacteria that divide by mitosis. 
A)  are photoheterotrophs. 
B)  are the source of many important antibiotics. 
C)  are Gram-negative bacteria. 
D)  were once classified as protists. 
E)  are the only bacteria that divide by mitosis.

Question 7

The mitochondria of eukaryotes were derived by endosymbiosis from

Accepted Answer

A)  proteobacteria. 
B)  chemoheterotrophs. 
C)  eukaryotes. 
D)  archaea. 
E)  viruses. 
A)  proteobacteria. 
B)  chemoheterotrophs. 
C)  eukaryotes. 
D)  archaea. 
E)  viruses.

Question 8

Which of the following statements concerning prokaryotes is true?

Accepted Answer

A)  Because prokaryotes do not contain organelles, they cannot photosynthesize or carry out cellular respiration. 
B)  Prokaryotes have no chromosomes and therefore lack DNA. 
C)  Prokaryote flagella are similar in structure to eukaryote flagella. 
D)  Prokaryotes undergo mitosis. 
E)  None of the above 
A)  Because prokaryotes do not contain organelles, they cannot photosynthesize or carry out cellular respiration. 
B)  Prokaryotes have no chromosomes and therefore lack DNA. 
C)  Prokaryote flagella are similar in structure to eukaryote flagella. 
D)  Prokaryotes undergo mitosis. 
E)  None of the above

Question 9

Which of the following statements about methanogens is false?

Accepted Answer

A)  Methane is their preferred carbon source. 
B)  They are associated with mammalian flatulence. 
C)  They prefer anaerobic conditions. 
D)  Some are thermophilic. 
E)  Some live in volcanic vents on the ocean floor. 
A)  Methane is their preferred carbon source. 
B)  They are associated with mammalian flatulence. 
C)  They prefer anaerobic conditions. 
D)  Some are thermophilic. 
E)  Some live in volcanic vents on the ocean floor.

Question 10

Which of the following factors make it difficult to reconstruct phylogenetic relationships in viruses?

Accepted Answer

A)  Small genomes 
B)  Diverse capsid morphologies 
C)  Rapid evolutionary rates 
D)  Both a and b 
E)  Both a and c 
A)  Small genomes 
B)  Diverse capsid morphologies 
C)  Rapid evolutionary rates 
D)  Both a and b 
E)  Both a and c

Question 11

An extremely important set of rules for the determination of bacterial disease transmission is

Accepted Answer

A)  Ehrlich's optimal law. 
B)  Koch's postulates. 
C)  Occam's razor. 
D)  Zeno's paradox. 
E)  Darwin's law of evolution by natural selection. 
A)  Ehrlich's optimal law. 
B)  Koch's postulates. 
C)  Occam's razor. 
D)  Zeno's paradox. 
E)  Darwin's law of evolution by natural selection.

Question 12

The Gram method is useful for classifying all bacteria that

Accepted Answer

A)  have two plasma membranes. 
B)  have cell walls. 
C)  have cell walls with at least some peptidoglycan. 
D)  are prokaryotic. 
E)  form endospores. 
A)  have two plasma membranes. 
B)  have cell walls. 
C)  have cell walls with at least some peptidoglycan. 
D)  are prokaryotic. 
E)  form endospores.

Question 13

Which of the following categories of organisms is dependent on organic molecules as both the source of energy and carbon?

Accepted Answer

A)  Photoautotrophs 
B)  Chemolithotrophs 
C)  Photoheterotrophs 
D)  Chemoheterotrophs 
E)  Nitrifiers 
A)  Photoautotrophs 
B)  Chemolithotrophs 
C)  Photoheterotrophs 
D)  Chemoheterotrophs 
E)  Nitrifiers

Question 14

Bacteria may differ from one another in

Accepted Answer

A)  structure. 
B)  metabolism. 
C)  life cycle. 
D)  Both a and c 
E)  All of the above 
A)  structure. 
B)  metabolism. 
C)  life cycle. 
D)  Both a and c 
E)  All of the above

Question 15

Use the following to answer questions:
Refer to the diagrams below, showing sections through the cell wall of Gram-positive and Gram-negative bacteria.  
-Which section shows the Gram-positive cell wall and which shows the Gram-negative cell wall?

Accepted Answer

Above: Gra

Question 16

Use the following to answer questions:
Refer to the diagrams below, showing sections through the cell wall of Gram-positive and Gram-negative bacteria.  
-Which of the labels (A, B, C, D) correspond to the periplasmic spaces?

Accepted Answer

The answer of Use the following to answer questions:
Refer to...

Question 17

The dense films laid down by many prokaryotes are

Accepted Answer

A)  endotoxins. 
B)  denitrifiers. 
C)  biofilms. 
D)  pathogens. 
E)  endospores. 
A)  endotoxins. 
B)  denitrifiers. 
C)  biofilms. 
D)  pathogens. 
E)  endospores.

Question 18

Viruses are thought to have

Accepted Answer

A)  evolved only once in evolutionary history. 
B)  evolved from escaped genomic components. 
C)  evolved from reduced cellular components. 
D)  evolved only twice. 
E)  Both b and c 
A)  evolved only once in evolutionary history. 
B)  evolved from escaped genomic components. 
C)  evolved from reduced cellular components. 
D)  evolved only twice. 
E)  Both b and c

Question 19

Use the following to answer questions:
Match the following descriptions of groups of bacteria with their names from the list below.
-These bacteria are not a monophyletic group.

Accepted Answer

A)  Cyanobacteria 
B)  Spirochetes 
C)  Chlamydia 
D)  Gram-negative rods 
E)  Actinobacteria
F) Mycoplasmas 
A)  Cyanobacteria 
B)  Spirochetes 
C)  Chlamydia 
D)  Gram-negative rods 
E)  Actinobacteria
F) Mycoplasmas

Question 20

Which of the following characteristics is present in Archaea, but not in Bacteria or Eukarya?

Accepted Answer

A)  Nitrogen fixation 
B)  Chlorophyll-based photosynthesis 
C)  Ether-linked membrane lipids 
D)  Cell walls with peptidoglycan 
E)  Plasmids 
A)  Nitrogen fixation 
B)  Chlorophyll-based photosynthesis 
C)  Ether-linked membrane lipids 
D)  Cell walls with peptidoglycan 
E)  Plasmids

Exam 26: Bacteria and Archaea: the Prokaryotic Domains

A friend tells you she "hates" bacteria and declares her intention to eradicate all bacteria from her home. What do you tell her?

Which of the following is not caused by a negative-sense single-stranded RNA virus?

Which of the following bacterial groups includes the greatest number of species?

Some species of Euryarchaeota

Cyanobacteria

Actinobacteria

The mitochondria of eukaryotes were derived by endosymbiosis from

Which of the following statements concerning prokaryotes is true?

Which of the following statements about methanogens is false?

Which of the following factors make it difficult to reconstruct phylogenetic relationships in viruses?

An extremely important set of rules for the determination of bacterial disease transmission is

The Gram method is useful for classifying all bacteria that

Which of the following categories of organisms is dependent on organic molecules as both the source of energy and carbon?

Bacteria may differ from one another in

Use the following to answer questions: Refer to the diagrams below, showing sections through the cell wall of Gram-positive and Gram-negative bacteria. -Which section shows the Gram-positive cell wall and which shows the Gram-negative cell wall?

Use the following to answer questions: Refer to the diagrams below, showing sections through the cell wall of Gram-positive and Gram-negative bacteria. -Which of the labels (A, B, C, D) correspond to the periplasmic spaces?

The dense films laid down by many prokaryotes are

Viruses are thought to have

Use the following to answer questions: Match the following descriptions of groups of bacteria with their names from the list below. -These bacteria are not a monophyletic group.

Which of the following characteristics is present in Archaea, but not in Bacteria or Eukarya?

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Signaling and Communication

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

Genomes

Recombinent Dna and Biotechnology

Differential Gene Expression in Development

Development and Evolutionary Change

Evidence and Mechanisms of Evolution

Reconstructing and Using Phylogenies

Species and Their Formation

Evolution of Genes and Genomes

The History of Life on Earth

The Origin and Diversification of Eukaryotes

Plants Without Seeds: From Water to Land

The Evolution of Seed Plants

Fungi: Recyclers, Pathogens, Parasites, and Plant Partners

Animal Origins and the Evolution of Body Plans

Protostome Animals

Deuterostome Animals

The Plant Body

Transport in Plants

Plant Nutrition

Regulation of Plant Growth

Reproduction in Flowering Plants

Plant Responses to Environmental Challenges

Physiology, Homeostasis, and Temperature Regulation

Animal Hormones

Immunology: Animal Defense Systems

Animal Reproduction

Animal Development

Neurons and Nervous Systems

Sensory Systems

The Mammalian Nervous System: Structure and Higher Function

Musculoskeletal Systems

Gas Exchange in Animals

Circulatory Systems

Nutrition, Digestion, and Absorption

Salt and Water Balance and Nitrogen

Animal Behavior

Ecology and the Distribution of Life

Population Ecology

Species Interaction and Coevolution

Community Ecology

Ecosystems and Global Ecology

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