Question 1

The region between the bacterial cell membrane and the cell wall is called the outer membrane.

Accepted Answer

A) True 
 B)False

Question 2

Magnetosomes are

Accepted Answer

A) infoldings of the cell membrane. 
B) found in all bacteria and some archaea. 
C) responsible for the heat resistance of endospores. 
D) also termed metachromatic granules. 
E) composed of magnetic iron oxide particles. 
A) infoldings of the cell membrane. 
B) found in all bacteria and some archaea. 
C) responsible for the heat resistance of endospores. 
D) also termed metachromatic granules. 
E) composed of magnetic iron oxide particles.

Question 3

The term that refers to the presence of a tuft of flagella emerging from a single site is ______.

Accepted Answer

A) amphitrichous 
B) lophotrichous 
C) atrichous 
D) peritrichous 
E) monotrichous 
A) amphitrichous 
B) lophotrichous 
C) atrichous 
D) peritrichous 
E) monotrichous

Question 4

A bacterial cell wall that has primarily peptidoglycan with small amounts of teichoic acid and lipoteichoic acid is ______.

Accepted Answer

A) a spheroplast 
B) acid-fast 
C) gram-negative 
D) gram-positive 
E) a protoplast 
A) a spheroplast 
B) acid-fast 
C) gram-negative 
D) gram-positive 
E) a protoplast

Question 5

Both gram-positive and gram-negative cells have outer membranes.

Accepted Answer

A) True 
 B)False

Question 6

Halobacterium salinarum lives in and requires a high salt concentration.This is an example of an archaeon described as a ______.

Accepted Answer

A) barophile 
B) halophile 
C) thermophile 
D) psychrophile 
A) barophile 
B) halophile 
C) thermophile 
D) psychrophile

Question 7

Mycobacterium and Nocardia are distinguished from other bacteria by the ______ stain.

Accepted Answer

A) endospore 
B) basic 
C) methylene blue 
D) Gram 
E) acid-fast 
A) endospore 
B) basic 
C) methylene blue 
D) Gram 
E) acid-fast

Question 8

All bacterial cells have ______.

Accepted Answer

A) an S-layer 
B) flagella 
C) the ability to produce endospores 
D) capsules 
E) a chromosome 
A) an S-layer 
B) flagella 
C) the ability to produce endospores 
D) capsules 
E) a chromosome

Question 9

Plasmids

Accepted Answer

A) are found in all bacteria. 
B) are essential for survival. 
C) are located in microcompartments. 
D) cannot be passed between organisms. 
E) often carry genes controlling pathogenicity. 
A) are found in all bacteria. 
B) are essential for survival. 
C) are located in microcompartments. 
D) cannot be passed between organisms. 
E) often carry genes controlling pathogenicity.

Question 10

Some bacteria have a cytoskeleton of sterols to help maintain their shape.

Accepted Answer

A) True 
 B)False

Question 11

The term that refers to flagella at both poles of the cell is ______.

Accepted Answer

A) peritrichous 
B) atrichous 
C) monotrichous 
D) amphitrichous 
E) lophotrichous 
A) peritrichous 
B) atrichous 
C) monotrichous 
D) amphitrichous 
E) lophotrichous

Question 12

Which term is not used to describe bacterial cell shape?

Accepted Answer

A) Spirochete 
B) Vibrio 
C) Coccus 
D) Bacillus 
E) Tetrad 
A) Spirochete 
B) Vibrio 
C) Coccus 
D) Bacillus 
E) Tetrad

Question 13

If bacteria living in salty seawater were displaced to a freshwater environment, the cell structure that would prevent the cells from rupturing is the ______.

Accepted Answer

A) slime layer 
B) capsule 
C) endospore 
D) cell membrane 
E) cell wall 
A) slime layer 
B) capsule 
C) endospore 
D) cell membrane 
E) cell wall

Question 14

At present, the most accurate indicator of evolutionary relatedness among organisms is the

Accepted Answer

A) size of the bacterial chromosome. 
B) similarities of cell membrane proteins. 
C) sequence of the ribosomal small subunit RNA. 
D) size of the ribosomes. 
E) size of the periplasmic space. 
A) size of the bacterial chromosome. 
B) similarities of cell membrane proteins. 
C) sequence of the ribosomal small subunit RNA. 
D) size of the ribosomes. 
E) size of the periplasmic space.

Question 15

The chromosome in bacteria and archaea

Accepted Answer

A) contains all the cell's plasmids. 
B) is located in the cell membrane. 
C) forms a single linear strand of DNA. 
D) is part of the nucleoid. 
A) contains all the cell's plasmids. 
B) is located in the cell membrane. 
C) forms a single linear strand of DNA. 
D) is part of the nucleoid.

Question 16

The term diplococcus refers to an irregular cluster of spherical bacterial cells.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following properties are shared by both bacteria and archaea?

Accepted Answer

A) Single, circular chromosome 
B) Method of DNA compaction 
C) Cell wall polysaccharides 
D) Ester linkages in fatty acids 
A) Single, circular chromosome 
B) Method of DNA compaction 
C) Cell wall polysaccharides 
D) Ester linkages in fatty acids

Question 18

Which of the following is mismatched?

Accepted Answer

A) Psychrophiles - adapted to very low temperatures 
B) Extreme halophiles - adapted to salty habitats 
C) Methanogens - convert CO2 and H2 into methane 
D) Hyperthermophiles - adapted to high temperatures 
E) Thermoplasmas - adapted to warm-blooded animal environments 
A) Psychrophiles - adapted to very low temperatures 
B) Extreme halophiles - adapted to salty habitats 
C) Methanogens - convert CO2 and H2 into methane 
D) Hyperthermophiles - adapted to high temperatures 
E) Thermoplasmas - adapted to warm-blooded animal environments

Question 19

The bacterial flagellum has three components.In order from the cytoplasm to the external environment, they are ______.

Accepted Answer

A) hook, basal body, and filament 
B) filament, hook, and basal body 
C) filament, basal body, and hook 
D) basal body, hook, and filament 
E) basal body, filament, and hook 
A) hook, basal body, and filament 
B) filament, hook, and basal body 
C) filament, basal body, and hook 
D) basal body, hook, and filament 
E) basal body, filament, and hook

Question 20

In which situation would a bacterium most likely have cytoplasmic inclusions?

Accepted Answer

A) When producing an endospore 
B) When the cell is synthesizing flagella 
C) When the cell is starved for nutrients 
D) In a habitat abundant in nutrients 
A) When producing an endospore 
B) When the cell is synthesizing flagella 
C) When the cell is starved for nutrients 
D) In a habitat abundant in nutrients

Exam 4: Bacteria and Archaea

The region between the bacterial cell membrane and the cell wall is called the outer membrane.

Magnetosomes are

The term that refers to the presence of a tuft of flagella emerging from a single site is ______.

A bacterial cell wall that has primarily peptidoglycan with small amounts of teichoic acid and lipoteichoic acid is ______.

Both gram-positive and gram-negative cells have outer membranes.

Halobacterium salinarum lives in and requires a high salt concentration.This is an example of an archaeon described as a ______.

Mycobacterium and Nocardia are distinguished from other bacteria by the ______ stain.

All bacterial cells have ______.

Plasmids

Some bacteria have a cytoskeleton of sterols to help maintain their shape.

The term that refers to flagella at both poles of the cell is ______.

Which term is not used to describe bacterial cell shape?

If bacteria living in salty seawater were displaced to a freshwater environment, the cell structure that would prevent the cells from rupturing is the ______.

At present, the most accurate indicator of evolutionary relatedness among organisms is the

The chromosome in bacteria and archaea

The term diplococcus refers to an irregular cluster of spherical bacterial cells.

Which of the following properties are shared by both bacteria and archaea?

Which of the following is mismatched?

The bacterial flagellum has three components.In order from the cytoplasm to the external environment, they are ______.

In which situation would a bacterium most likely have cytoplasmic inclusions?

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods for the Culturing of Microscopic Analysis of Microorganisms

Eukaryotic Cells and Microorganisms

An Introduction to the Viruses

Microbial Nutrition, Ecology, and Growth

Microbial Metabolism: The Chemical Crossroads of Life

Microbial Genetics

Genetic Engineering and Recombinant Dna

Physical and Chemical Control of Microbes

Antimicrobial Treatment

Microbe-Human Interactions: Health and Disease

Host Defenses I: Overview and Nonspecific Defenses

Host Defenses II: Specific Immunity and Immunization

Disorders in Immunity

Diagnosing Infections

Infectious Diseases Affecting the Skin and Eyes

Infectious Diseases Affecting the Nervous System

Infectious Diseases Affecting the Cardiovascular and Lymphatic Systems

Infectious Diseases Affecting the Respiratory System

Infectious Diseases Affecting the Gastrointestinal Tract

Infectious Diseases Affecting the Genitourinary System

Microbes and the Environment

Applied Microbiology and Food and Water Safety

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