Question 1

Pleomorphic bacteria

Accepted Answer

A)  have a slightly curved rod shape. 
B)  are flexible. 
C)  reproduce by snapping division. 
D)  are roughly spherical. 
E)  vary in size and shape. 
A)  have a slightly curved rod shape. 
B)  are flexible. 
C)  reproduce by snapping division. 
D)  are roughly spherical. 
E)  vary in size and shape.

Question 2

Which of the following types of microbes might be found in a boiling hot spring?

Accepted Answer

A)  hyperthermophiles 
B)  phototrophic bacteria 
C)  methanogens 
D)  non-thermophiles 
E)  halophiles 
A)  hyperthermophiles 
B)  phototrophic bacteria 
C)  methanogens 
D)  non-thermophiles 
E)  halophiles

Question 3

Explain the significance of endospores.

Accepted Answer

Because an endospore can regenerate the

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

The bacterium (Agrobacterium/Cyanobacteria/Rhizobium)is a member of the alphaproteobacteria that forms beneficial relationships with higher plants.

Accepted Answer

The answer of The bacterium (Agrobacterium/Cyanobacteria/Rhizobium)is a member of the...

Question 6

The purple sulfur bacteria carry out oxygenic photosynthesis.

Accepted Answer

A) True 
 B)False

Question 7

The (streptobacilli/actinomycetes/mycoplasmas)are a group of Gram-positive bacteria that form branching filaments resembling those of fungi.

Accepted Answer

The answer of The (streptobacilli/actinomycetes/mycoplasmas)are a group of Gram-positive bacteria...

Question 8

Gammaproteobacteria of the genus (Escherichia/Pseudomonas/Vibrio)catabolize carbohydrates using pathways other than the standard glycolytic (Embden-Meyerhof)pathway.

Accepted Answer

The answer of Gammaproteobacteria of the genus (Escherichia/Pseudomonas/Vibrio)catabolize carbohydrates using...

Question 9

Bacteria in the phylum Firmicutes are distinguished from the phylum Actinobacteria on the basis of

Accepted Answer

A)  their Gram stain reaction. 
B)  the high G + C content of their DNA. 
C)  their spiral shapes. 
D)  the low G + C content of their DNA. 
E)  the presence of LPS in their membranes. 
A)  their Gram stain reaction. 
B)  the high G + C content of their DNA. 
C)  their spiral shapes. 
D)  the low G + C content of their DNA. 
E)  the presence of LPS in their membranes.

Question 10

The reduction of nitrogen gas to ammonia is called nitrogen (fixation/cycling/oxidation).

Accepted Answer

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

Question 11

Will is a graduate student working in a microbiology lab.He is given the task of characterizing a newly discovered nitrogen fixing bacterium.What type of tests or observations will help him determine whether it is a member of the Cyanobacteria,alphaproteobacteria,or gammaproteobacteria?

Accepted Answer

If the bacteria are coccus or disc-shape

Question 12

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 13

The G + C content is a(n)(RNA/structural/genetic)determination used in classifying the different taxa of Gram-positive bacteria.

Accepted Answer

The answer of The G + C content is a(n)(RNA/structural/genetic)determination...

Question 14

Some cyanobacteria reproduce by means of

Accepted Answer

A)  akinetes. 
B)  endospores. 
C)  budding. 
D)  meiosis. 
E)  fragmentation. 
A)  akinetes. 
B)  endospores. 
C)  budding. 
D)  meiosis. 
E)  fragmentation.

Question 15

Gram-negative bacteria in the genus ________ prey on other Gram-negative bacteria.

Accepted Answer

A)  Bdellovibrio 
B)  Chlamydia 
C)  Rickettsia 
D)  Mycoplasma 
E)  Caulobacter 
A)  Bdellovibrio 
B)  Chlamydia 
C)  Rickettsia 
D)  Mycoplasma 
E)  Caulobacter

Exam 11: Characterizing and Classifying Prokaryotes

Pleomorphic bacteria

Which of the following types of microbes might be found in a boiling hot spring?

Explain the significance of endospores.

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

The bacterium (Agrobacterium/Cyanobacteria/Rhizobium)is a member of the alphaproteobacteria that forms beneficial relationships with higher plants.

The purple sulfur bacteria carry out oxygenic photosynthesis.

The (streptobacilli/actinomycetes/mycoplasmas)are a group of Gram-positive bacteria that form branching filaments resembling those of fungi.

Gammaproteobacteria of the genus (Escherichia/Pseudomonas/Vibrio)catabolize carbohydrates using pathways other than the standard glycolytic (Embden-Meyerhof)pathway.

Bacteria in the phylum Firmicutes are distinguished from the phylum Actinobacteria on the basis of

The reduction of nitrogen gas to ammonia is called nitrogen (fixation/cycling/oxidation).

Will is a graduate student working in a microbiology lab.He is given the task of characterizing a newly discovered nitrogen fixing bacterium.What type of tests or observations will help him determine whether it is a member of the Cyanobacteria,alphaproteobacteria,or gammaproteobacteria?

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

The G + C content is a(n)(RNA/structural/genetic)determination used in classifying the different taxa of Gram-positive bacteria.

Some cyanobacteria reproduce by means of

Gram-negative bacteria in the genus ________ prey on other Gram-negative bacteria.

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

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

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Pathogenic Gram Positive Bacteria

Pathogenic Gram-Negative Cocci and Bacilli

Rickettsias, Chlamydias, Spirochetes, and Vibrios

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic DNA Viruses

Pathogenic RNA Viruses

Applied and Environmental Microbiology

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