Question 1

You have isolated a gram- positive rod. What should you do next?

Accepted Answer

A)  endospore stain 
B)  lactose fermentation 
C)  enterotube 
D)  flagella stain 
E)  Gram stain 
A)  endospore stain 
B)  lactose fermentation 
C)  enterotube 
D)  flagella stain 
E)  Gram stain

Question 2

Which of the following is NOT an enteric?

Accepted Answer

A)  Shigella 
B)  Escherichia 
C)  Enterobacter 
D)  Salmonella 
E)  Campylobacter 
A)  Shigella 
B)  Escherichia 
C)  Enterobacter 
D)  Salmonella 
E)  Campylobacter

Question 3

Actinomycetes differ from fungi in that actinomycetes

Accepted Answer

A)  are chemoheterotrophs. 
B)  cause disease. 
C)  lack a membrane- bounded nucleus. 
D)  are decomposers. 
E)  require light. 
A)  are chemoheterotrophs. 
B)  cause disease. 
C)  lack a membrane- bounded nucleus. 
D)  are decomposers. 
E)  require light.

Question 4

Photosynthetic organisms always produce oxygen gas as a metabolic byproduct.

Accepted Answer

A) True 
 B)False

Question 5

Streptomyces differs from Actinomyces because Streptomyces

Accepted Answer

A)  is a bacterium. 
B)  produces conidia. 
C)  forms filaments. 
D)  makes antibiotics. 
E)  is a strict aerobe. 
A)  is a bacterium. 
B)  produces conidia. 
C)  forms filaments. 
D)  makes antibiotics. 
E)  is a strict aerobe.

Question 6

Which of the following genera is an anaerobic gram- negative rod?

Accepted Answer

A)  Bacteroides 
B)  Treponema 
C)  Neisseria 
D)  Staphylococcus 
E)  Escherichia 
A)  Bacteroides 
B)  Treponema 
C)  Neisseria 
D)  Staphylococcus 
E)  Escherichia

Question 7

Which of the following pairs is mismatched?

Accepted Answer

A)  mycobacteria - acid- fast 
B)  Pseudomonas - gram- positive 
C)  aerobic, helical bacteria - gram- negative 
D)  spirochete - axial filament 
E)  enterics - gram- negative 
A)  mycobacteria - acid- fast 
B)  Pseudomonas - gram- positive 
C)  aerobic, helical bacteria - gram- negative 
D)  spirochete - axial filament 
E)  enterics - gram- negative

Question 8

Borrelia is classified as a spirochete because it

Accepted Answer

A)  possesses an axial filament. 
B)  is transmitted by ticks. 
C)  is aerobic. 
D)  is a pathogen. 
E)  is a rod. 
A)  possesses an axial filament. 
B)  is transmitted by ticks. 
C)  is aerobic. 
D)  is a pathogen. 
E)  is a rod.

Question 9

You have isolated a prokaryotic cell. The first step in identification is a(n)

Accepted Answer

A)  Gram stain. 
B)  DNA fingerprint. 
C)  endospore stain. 
D)  flagella stain. 
E)  lactose fermentation test. 
A)  Gram stain. 
B)  DNA fingerprint. 
C)  endospore stain. 
D)  flagella stain. 
E)  lactose fermentation test.

Question 10

Which of the following lacks a cell wall?

Accepted Answer

A)  Clostridium 
B)  Mycobacterium 
C)  Nocardia 
D)  Borrelia 
E)  Mycoplasma 
A)  Clostridium 
B)  Mycobacterium 
C)  Nocardia 
D)  Borrelia 
E)  Mycoplasma

Question 11

Which of the following pairs is NOT correctly matched?

Accepted Answer

A)  elementary body - Escherichia 
B)  heterocyst - cyanobacteria 
C)  myxospore - gliding bacteria 
D)  endospore - Clostridium 
E)  endospore - Bacillus 
A)  elementary body - Escherichia 
B)  heterocyst - cyanobacteria 
C)  myxospore - gliding bacteria 
D)  endospore - Clostridium 
E)  endospore - Bacillus

Question 12

The crab industry needs female crabs for growing more crabs. What bacterium might be used to ensure development of female crabs and shrimp?

Accepted Answer

A)  Neisseria 
B)  Acinetobacter 
C)  Gemmata 
D)  Wolbachia 
E)  Pelagibacter 
A)  Neisseria 
B)  Acinetobacter 
C)  Gemmata 
D)  Wolbachia 
E)  Pelagibacter

Question 13

Which of the following bacteria is gram- negative?

Accepted Answer

A)  Staphylococcus 
B)  Corynebacterium 
C)  Bacillus 
D)  Treponema 
E)  Mycobacterium 
A)  Staphylococcus 
B)  Corynebacterium 
C)  Bacillus 
D)  Treponema 
E)  Mycobacterium

Question 14

Which of the following pairs is mismatched?

Accepted Answer

A)  actinomycetes - reproduce by fragmentation 
B)  archaea - extremophiles 
C)  chemoautotrophic bacteria - fix atmospheric nitrogen 
D)  Cytophaga - a gliding, nonfruiting bacterium 
E)  dissimilatory sulfate- reducing bacteria - produce H2S 
A)  actinomycetes - reproduce by fragmentation 
B)  archaea - extremophiles 
C)  chemoautotrophic bacteria - fix atmospheric nitrogen 
D)  Cytophaga - a gliding, nonfruiting bacterium 
E)  dissimilatory sulfate- reducing bacteria - produce H2S

Question 15

All gram- negative bacteria are classified as proteobacteria.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is NOT a characteristic of spirochetes?

Accepted Answer

A)  helical shape 
B)  gram- negative 
C)  found in the human oral cavity 
D)  possess an axial filament 
E)  easily observed with brightfield microscopy 
A)  helical shape 
B)  gram- negative 
C)  found in the human oral cavity 
D)  possess an axial filament 
E)  easily observed with brightfield microscopy

Question 17

Burkholderia was reclassified from the gammaproteobacteria to the betaproteobacteria because

Accepted Answer

A)  it causes melioidosis. 
B)  it grows in disinfectants. 
C)  it is a gram- negative rod. 
D)  its rRNA sequence is similar to that of Neisseria. 
E)  it causes infections in cystic fibrosis patients. 
A)  it causes melioidosis. 
B)  it grows in disinfectants. 
C)  it is a gram- negative rod. 
D)  its rRNA sequence is similar to that of Neisseria. 
E)  it causes infections in cystic fibrosis patients.

Exam 11: The Prokaryotes: Domains Bacteria and Archaea

You have isolated a gram- positive rod. What should you do next?

Which of the following is NOT an enteric?

Actinomycetes differ from fungi in that actinomycetes

Photosynthetic organisms always produce oxygen gas as a metabolic byproduct.

Streptomyces differs from Actinomyces because Streptomyces

Which of the following genera is an anaerobic gram- negative rod?

Which of the following pairs is mismatched?

Borrelia is classified as a spirochete because it

You have isolated a prokaryotic cell. The first step in identification is a(n)

Which of the following lacks a cell wall?

Which of the following pairs is NOT correctly matched?

The crab industry needs female crabs for growing more crabs. What bacterium might be used to ensure development of female crabs and shrimp?

Which of the following bacteria is gram- negative?

Which of the following pairs is mismatched?

All gram- negative bacteria are classified as proteobacteria.

Which of the following is NOT a characteristic of spirochetes?

Burkholderia was reclassified from the gammaproteobacteria to the betaproteobacteria because

The Microbial World and You

Chemical Principles

Observing Microorganisms Through a Microscope

Functional Anatomy of Prokaryotic and Eukaryotic Cells

Microbial Metabolism

Microbial Growth

The Control of Microbial Growth

Microbial Genetics

Biotechnology and Recombinant Dna

Classification of Microorganisms

The Eukaryotes: Fungi, Algae, Protozoa, and Helminths

Viruses, Viroids, and Prions

Principles of Disease and Epidemiology

Microbial Mechanisms of Pathogenicity

Innate Immunity: Nonspecific Defenses of the Host

Adaptive Immunity: Specific Defenses of the Host

Practical Applications of Immunology

Disorders Associated With the Immune System

Antimicrobial Drugs

Microbial Diseases of the Skin and Eyes

Microbial Diseases of the Nervous System

Microbial Diseases of the Cardiovascular and Lymphatic Systems

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Diseases of the Urinary and Reproductive Systems

Environmental Microbiology

Applied and Industrial Microbiology

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