Question 1

The G+C ratio is a ______ determination used in classifying the different taxa of Gram-positive bacteria.

Accepted Answer

The answer of The G+C ratio is a ______ determination...

Question 2

A bacterial cell that produces an endospore is called a(n) ___________ cell.

Accepted Answer

The answer of A bacterial cell that produces an endospore...

Question 3

Endospores

Accepted Answer

A)  are bacterial reproductive structures. 
B)  can be produced when nutrients are scarce. 
C)  are produced by bacteria, algae, and fungi. 
D)  are resistant to everything except radiation. 
E)  can last for only about 100 years. 
A)  are bacterial reproductive structures. 
B)  can be produced when nutrients are scarce. 
C)  are produced by bacteria, algae, and fungi. 
D)  are resistant to everything except radiation. 
E)  can last for only about 100 years.

Question 4

The anaerobic Clostridium species are troublesome pathogens largely because of their capacity for

Accepted Answer

A)  endospore production. 
B)  rapid reproduction. 
C)  oxygen production. 
D)  biofilm production. 
E)  high salt tolerance. 
A)  endospore production. 
B)  rapid reproduction. 
C)  oxygen production. 
D)  biofilm production. 
E)  high salt tolerance.

Question 5

Bacteria that use chlorophyll a and engage in oxygenic photosynthesis, just like plants and algae, are called __________.

Accepted Answer

The answer of Bacteria that use chlorophyll a and engage...

Question 6

Plant tumors caused by Agrobacterium infections are called ___________.

Accepted Answer

The answer of Plant tumors caused by Agrobacterium infections are...

Question 7

What bacterial structure is responsible for separating the daughter DNA molecules after replication?

Accepted Answer

A)  cross wall 
B)  cytoplasmic membrane 
C)  fimbria 
D)  spindle 
E)  cytoskeleton 
A)  cross wall 
B)  cytoplasmic membrane 
C)  fimbria 
D)  spindle 
E)  cytoskeleton

Question 8

Which of the following types of microbes might be found in the Dead Sea?

Accepted Answer

A)  hyperthermophiles 
B)  phototrophic bacteria 
C)  methanogens 
D)  actinomycetes 
E)  halophiles 
A)  hyperthermophiles 
B)  phototrophic bacteria 
C)  methanogens 
D)  actinomycetes 
E)  halophiles

Question 9

Most of the methane produced by methanogens is oxidized by other types of bacteria before it affects the Earth's climate.

Accepted Answer

A) True 
 B)False

Question 10

Describe the major taxonomic divisions of prokaryotic organisms.

Accepted Answer

Bergey's Manual divides prokaryotes into

Question 11

Explain why it is beneficial for some bacteria to invade host cells, and describe two examples.

Accepted Answer

One of the biggest advantages of invadin

Question 12

The reduction of nitrogen gas to ammonia is called nitrogen __________.

Accepted Answer

The answer of The reduction of nitrogen gas to ammonia...

Question 13

Which of the following bacterial genera is used for the degradation of environmental pollutants?

Accepted Answer

A)  Actinomyces 
B)  Streptomyces 
C)  Corynebacterium 
D)  Rhizobium 
E)  Nocardia 
A)  Actinomyces 
B)  Streptomyces 
C)  Corynebacterium 
D)  Rhizobium 
E)  Nocardia

Question 14

Mycoplasmas are pleomorphic because they

Accepted Answer

A)  have no cell walls. 
B)  are low G + C Gram-positive bacteria. 
C)  exhibit snapping division. 
D)  have sterols in their cytoplasmic membranes. 
E)  produce endospores. 
A)  have no cell walls. 
B)  are low G + C Gram-positive bacteria. 
C)  exhibit snapping division. 
D)  have sterols in their cytoplasmic membranes. 
E)  produce endospores.

Question 15

Members of which of the following genera are the most common sexually transmitted bacteria in the United States?

Accepted Answer

A)  Bacteroides 
B)  Rickettsia 
C)  Chlamydia 
D)  Helicobacter 
E)  Treponema 
A)  Bacteroides 
B)  Rickettsia 
C)  Chlamydia 
D)  Helicobacter 
E)  Treponema

Question 16

The genus Mycobacterium includes species responsible for

Accepted Answer

A)  tuberculosis. 
B)  urinary tract infections. 
C)  food poisoning from contaminated dairy products. 
D)  gastric ulcers. 
E)  food poisoning from rice. 
A)  tuberculosis. 
B)  urinary tract infections. 
C)  food poisoning from contaminated dairy products. 
D)  gastric ulcers. 
E)  food poisoning from rice.

Question 17

Mycoplasmas are named for the large quantities of mycolic acid in their cell walls.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following statements regarding cyanobacteria is FALSE?

Accepted Answer

A)  They are oxygenic. 
B)  Many perform nitrogen fixation. 
C)  They contain chlorophyll a. 
D)  They may have given rise to mitochondria. 
E)  Some are motile. 
A)  They are oxygenic. 
B)  Many perform nitrogen fixation. 
C)  They contain chlorophyll a. 
D)  They may have given rise to mitochondria. 
E)  Some are motile.

Question 19

The infective stage of chlamydia is called the __________ body.

Accepted Answer

The answer of The infective stage of chlamydia is called...

Question 20

The largest known group of archaea is the

Accepted Answer

A)  thermophiles. 
B)  halophiles. 
C)  cyanobacteria. 
D)  methanogens. 
E)  hyperthermophiles. 
A)  thermophiles. 
B)  halophiles. 
C)  cyanobacteria. 
D)  methanogens. 
E)  hyperthermophiles.

Exam 11: Characterizing and Classifying Prokaryotes

The G+C ratio is a ______ determination used in classifying the different taxa of Gram-positive bacteria.

A bacterial cell that produces an endospore is called a(n) ___________ cell.

Endospores

The anaerobic Clostridium species are troublesome pathogens largely because of their capacity for

Bacteria that use chlorophyll a and engage in oxygenic photosynthesis, just like plants and algae, are called __________.

Plant tumors caused by Agrobacterium infections are called ___________.

What bacterial structure is responsible for separating the daughter DNA molecules after replication?

Which of the following types of microbes might be found in the Dead Sea?

Most of the methane produced by methanogens is oxidized by other types of bacteria before it affects the Earth's climate.

Describe the major taxonomic divisions of prokaryotic organisms.

Explain why it is beneficial for some bacteria to invade host cells, and describe two examples.

The reduction of nitrogen gas to ammonia is called nitrogen __________.

Which of the following bacterial genera is used for the degradation of environmental pollutants?

Mycoplasmas are pleomorphic because they

Members of which of the following genera are the most common sexually transmitted bacteria in the United States?

The genus Mycobacterium includes species responsible for

Mycoplasmas are named for the large quantities of mycolic acid in their cell walls.

Which of the following statements regarding cyanobacteria is FALSE?

The infective stage of chlamydia is called the __________ body.

The largest known group of archaea is the

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

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Recombinant Dna Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

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Immunization and Immune Testing

Aids and Other Immune Disorders

Microbial Diseases of the Skin and Wounds

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