Question 1

Which of the following is pyogenic (pus forming)?

Accepted Answer

A)  Streptococcus pyogenes 
B)  Streptococcus mutans 
C)  Streptococcus fecaelis 
D)  Lactococcus lactis 
A)  Streptococcus pyogenes 
B)  Streptococcus mutans 
C)  Streptococcus fecaelis 
D)  Lactococcus lactis

Question 2

Staphylococcus aureus appears to be very adept at acquiring virulence and antibiotic resistance genes from other bacteria.

Accepted Answer

A) True 
 B)False

Question 3

Lactobacillus grows optimally at __________ pH.

Accepted Answer

A)  slightly acidic 
B)  neutral 
C)  slightly alkaline 
D)  very acidic 
A)  slightly acidic 
B)  neutral 
C)  slightly alkaline 
D)  very acidic

Question 4

Members of the genus Clostridium are spore-forming and aerobic.

Accepted Answer

A) True 
 B)False

Question 5

Primary atypical pneumonia in humans is caused by

Accepted Answer

A)  Streptococcus pneumoniae. 
B)  Klebsiella pneumoniae. 
C)  Mycoplasma pneumoniae. 
D)  Pneumococcus pneumoniae. 
A)  Streptococcus pneumoniae. 
B)  Klebsiella pneumoniae. 
C)  Mycoplasma pneumoniae. 
D)  Pneumococcus pneumoniae.

Question 6

Enterococcus faecalis has been associated with

Accepted Answer

A)  endocarditis. 
B)  abscesses. 
C)  diarrhea. 
D)  sinus infection. 
A)  endocarditis. 
B)  abscesses. 
C)  diarrhea. 
D)  sinus infection.

Question 7

Which of the following is responsible for causing gas gangrene?

Accepted Answer

A)  Clostridium perfringens 
B)  Clostridium botulinum 
C)  Clostridium acetobutylicum 
D)  Clostridium tetani 
A)  Clostridium perfringens 
B)  Clostridium botulinum 
C)  Clostridium acetobutylicum 
D)  Clostridium tetani

Question 8

Although lacking a TCA cycle and a respiratory chain, __________ can divide with a generation time of eight to ten minutes when growing in a human host.

Accepted Answer

A)  Streptococcus pyogenes 
B)  Staphylococcus aureus 
C)  Clostridium perfringens 
D)  no bacterium can divide that fast 
A)  Streptococcus pyogenes 
B)  Staphylococcus aureus 
C)  Clostridium perfringens 
D)  no bacterium can divide that fast

Question 9

Members of the genus Staphylococcus are normally associated with

Accepted Answer

A)  skin. 
B)  skin glands. 
C)  mucous membranes. 
D)  all of the choices 
A)  skin. 
B)  skin glands. 
C)  mucous membranes. 
D)  all of the choices

Question 10

The largest genus in the order Lactobacillales is _____________ with around 100 species.

Accepted Answer

A)  Lactobacillus 
B)  Leuconostoc 
C)  Streptococcus 
D)  Listeria 
A)  Lactobacillus 
B)  Leuconostoc 
C)  Streptococcus 
D)  Listeria

Question 11

Which of the following is not true of the genus Lactobacillus?

Accepted Answer

A)  They are used in the production of fermented vegetable foods, beverages, sour dough, hard cheeses, yogurt, and sausages. 
B)  They are responsible for spoilage of beer, milk, and meat. 
C)  Many species are pathogenic in humans and animals. 
D)  They do not produce endospores. 
A)  They are used in the production of fermented vegetable foods, beverages, sour dough, hard cheeses, yogurt, and sausages. 
B)  They are responsible for spoilage of beer, milk, and meat. 
C)  Many species are pathogenic in humans and animals. 
D)  They do not produce endospores.

Question 12

Which of the following is(are) true of mycoplasmas?

Accepted Answer

A)  They are difficult to detect in mammalian cell cultures. 
B)  They are a frequent contaminant of mammalian cell cultures. 
C)  They are difficult to eliminate from mammalian cell cultures. 
D)  all of the choices 
A)  They are difficult to detect in mammalian cell cultures. 
B)  They are a frequent contaminant of mammalian cell cultures. 
C)  They are difficult to eliminate from mammalian cell cultures. 
D)  all of the choices

Question 13

Members of the genus Bacillus are spore-forming, aerobic and catalase positive.

Accepted Answer

A) True 
 B)False

Exam 21: Bacteria the Low G+C Gram Positives

Which of the following is pyogenic (pus forming)?

Staphylococcus aureus appears to be very adept at acquiring virulence and antibiotic resistance genes from other bacteria.

Lactobacillus grows optimally at __________ pH.

Members of the genus Clostridium are spore-forming and aerobic.

Primary atypical pneumonia in humans is caused by

Enterococcus faecalis has been associated with

Which of the following is responsible for causing gas gangrene?

Although lacking a TCA cycle and a respiratory chain, __________ can divide with a generation time of eight to ten minutes when growing in a human host.

Members of the genus Staphylococcus are normally associated with

The largest genus in the order Lactobacillales is _____________ with around 100 species.

Which of the following is not true of the genus Lactobacillus?

Which of the following is(are) true of mycoplasmas?

Members of the genus Bacillus are spore-forming, aerobic and catalase positive.

The Evolution of Microorganisms and Microbiology

The Study of Microbial Structure: Microscopy and Specimen Preparation

Bacteria and Archaea

Eukaryotic Cell Structure and Function

Viruses and Other Acellular Infectious Agents

Microbial Nutrition

Microbial Growth

Control of Microorganisms in the Environment

Introduction to Metabolism

Catabolism Energy Release and Conservation

Anabolism the Use of Energy in Biosynthesis

Genes Structure, Replication, and Expression

Microbial Genetics Regulation of Gene Expression

Microbial Genetics Mechanisms of Genetic Variation

Recombinant Dna Technology

Microbial Genomics

Microbial Taxonomy and the Evolution of Diversity

The Archaea

Bacteria the Deinococci and Nonproteobacteria Gram Negatives

Bacteria the Proteobacteria

Bacteria the High G+C Gram Positives

The Protists

The Fungi Eumycota

The Viruses

Biogeochemical Cycling

Methods in Microbial Ecology

Microorganisms in Marine and Freshwater Ecosystems

Microorganisms in Terrestrial Ecosystems

Microbial Interactions

Infection and Pathogenicity

Nonspecific Innate Host Resistance

Specific Adaptive Immunity

Antimicrobial Chemotherapy

Clinical Microbiology and Immunology

Epidemiology and Public Health Microbiology

Human Diseases Caused by Viruses and Prions

Human Diseases Caused by Bacteria

Human Diseases Caused by Fungi and Protists

Microbiology of Food

Industrial Microbiology

Applied Environmental Microbiology

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