Question 1

Strep throat may progress to ________,characterized by a skin rash and a bright red swollen tongue.

Accepted Answer

A)  pyoderma 
B)  toxic shock syndrome 
C)  scarlet fever 
D)  rheumatic fever 
E)  scalded skin syndrome 
A)  pyoderma 
B)  toxic shock syndrome 
C)  scarlet fever 
D)  rheumatic fever 
E)  scalded skin syndrome

Question 2

Members of the genus Mycoplasma are pleomorphic and stain Gram-negative because they

Accepted Answer

A)  lack cell walls. 
B)  have sterols in their cytoplasmic membranes. 
C)  lack cytoplasmic membranes. 
D)  have mycolic acid in their cell walls. 
E)  have a rudimentary cell wall. 
A)  lack cell walls. 
B)  have sterols in their cytoplasmic membranes. 
C)  lack cytoplasmic membranes. 
D)  have mycolic acid in their cell walls. 
E)  have a rudimentary cell wall.

Question 3

Infection with Corynebacterium diphtheriae leads to the formation of (eschars/pseudomembranes/tubercles)which can severely impair respiratory function.

Accepted Answer

The answer of Infection with Corynebacterium diphtheriae leads to the...

Question 4

Mycoplasma pneumoniae causes respiratory disease by

Accepted Answer

A)  infecting and killing alveolar macrophages. 
B)  triggering inflammatory mediator release. 
C)  attaching to and ultimately killing the ciliated epithelial cells of the trachea. 
D)  paralyzing the respiratory muscles. 
E)  killing the epithelial cells of the alveoli. 
A)  infecting and killing alveolar macrophages. 
B)  triggering inflammatory mediator release. 
C)  attaching to and ultimately killing the ciliated epithelial cells of the trachea. 
D)  paralyzing the respiratory muscles. 
E)  killing the epithelial cells of the alveoli.

Question 5

The bacterium Clostridium (botulinum/difficile/perfringens)is an opportunistic pathogen that can cause a severe,potentially fatal diarrhea.

Accepted Answer

The answer of The bacterium Clostridium (botulinum/difficile/perfringens)is an opportunistic pathogen...

Question 6

Mycobacterium leprae primarily infects

Accepted Answer

A)  macrophages. 
B)  skin cells. 
C)  neurons. 
D)  macrophages and skin cells. 
E)  skin cells and neurons. 
A)  macrophages. 
B)  skin cells. 
C)  neurons. 
D)  macrophages and skin cells. 
E)  skin cells and neurons.

Question 7

(MRSA/MDR-TB/VRSA)is resistant to numerous antimicrobial agents; therefore,vancomycin is usually used for these infections.

Accepted Answer

The answer of (MRSA/MDR-TB/VRSA)is resistant to numerous antimicrobial agents; therefore,vancomycin...

Question 8

The pathogenicity of primary tuberculosis is due to the fact that the mycobacteria

Accepted Answer

A)  are not phagocytized. 
B)  prevent fusion of lysosomes with vesicles. 
C)  form a pseudomembrane. 
D)  destroy helper T cells. 
E)  are carried by macrophages to a variety of sites. 
A)  are not phagocytized. 
B)  prevent fusion of lysosomes with vesicles. 
C)  form a pseudomembrane. 
D)  destroy helper T cells. 
E)  are carried by macrophages to a variety of sites.

Question 9

Listeria virulence is directly related to its ability to

Accepted Answer

A)  produce powerful toxins. 
B)  form very resistant endospores. 
C)  live within cells and thus avoid exposure to the immune system of its host. 
D)  move rapidly through the body using multiple flagella. 
E)  resist most antimicrobial agents. 
A)  produce powerful toxins. 
B)  form very resistant endospores. 
C)  live within cells and thus avoid exposure to the immune system of its host. 
D)  move rapidly through the body using multiple flagella. 
E)  resist most antimicrobial agents.

Question 10

When observed in the lab Mycoplasma stains (acid-fast/Gram-positive/Gram-negative).

Accepted Answer

The answer of When observed in the lab Mycoplasma stains...

Question 11

Compare and contrast the pathogenicity of Clostridium botulinum and Clostridium tetani,including mechanisms of action of their toxins and disease manifestations.

Accepted Answer

Both bacteria are anaerobic endospore-fo

Question 12

Increased sebum secretion can fuel the overgrowth of the opportunistic pathogen ________ in its normal habitat,leading to disease.

Accepted Answer

A)  Propionibacterium acnes 
B)  Streptococcus agalactiae 
C)  viridians streptococci 
D)  Mycoplasma pneumoniae 
E)  Actinomyces 
A)  Propionibacterium acnes 
B)  Streptococcus agalactiae 
C)  viridians streptococci 
D)  Mycoplasma pneumoniae 
E)  Actinomyces

Question 13

The skin lesions characteristic of cutaneous infections with Bacillus anthracis are

Accepted Answer

A)  eschars. 
B)  acne. 
C)  impetigo. 
D)  scarlatina. 
E)  pus-filled ulcers. 
A)  eschars. 
B)  acne. 
C)  impetigo. 
D)  scarlatina. 
E)  pus-filled ulcers.

Question 14

Mycetoma,which is a painless long-lasting infection characterized by swelling,pus production,and draining sores,is commonly caused by

Accepted Answer

A)  systemic tuberculosis. 
B)  Nocardia. 
C)  Actinomyces. 
D)  penicillin-resistant staphylococci. 
E)  cutaneous anthrax. 
A)  systemic tuberculosis. 
B)  Nocardia. 
C)  Actinomyces. 
D)  penicillin-resistant staphylococci. 
E)  cutaneous anthrax.

Question 15

In countries where tuberculosis is common,people are vaccinated with (BCG/INH/MDR-TB),which contains attenuated Mycobacterium bovis bacteria.

Accepted Answer

The answer of In countries where tuberculosis is common,people are...

Exam 19: Pathogenic Gram Positive Bacteria

Strep throat may progress to ________,characterized by a skin rash and a bright red swollen tongue.

Members of the genus Mycoplasma are pleomorphic and stain Gram-negative because they

Infection with Corynebacterium diphtheriae leads to the formation of (eschars/pseudomembranes/tubercles)which can severely impair respiratory function.

Mycoplasma pneumoniae causes respiratory disease by

The bacterium Clostridium (botulinum/difficile/perfringens)is an opportunistic pathogen that can cause a severe,potentially fatal diarrhea.

Mycobacterium leprae primarily infects

(MRSA/MDR-TB/VRSA)is resistant to numerous antimicrobial agents; therefore,vancomycin is usually used for these infections.

The pathogenicity of primary tuberculosis is due to the fact that the mycobacteria

Listeria virulence is directly related to its ability to

When observed in the lab Mycoplasma stains (acid-fast/Gram-positive/Gram-negative).

Compare and contrast the pathogenicity of Clostridium botulinum and Clostridium tetani,including mechanisms of action of their toxins and disease manifestations.

Increased sebum secretion can fuel the overgrowth of the opportunistic pathogen ________ in its normal habitat,leading to disease.

The skin lesions characteristic of cutaneous infections with Bacillus anthracis are

Mycetoma,which is a painless long-lasting infection characterized by swelling,pus production,and draining sores,is commonly caused by

In countries where tuberculosis is common,people are vaccinated with (BCG/INH/MDR-TB),which contains attenuated Mycobacterium bovis 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 Prokaryotes

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-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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