Question 1

________ are toxic proteins released from the pathogen as it grows.

Accepted Answer

A)  Endotoxins 
B)  Exotoxins 
C)  Macrotoxins 
D)  Microtoxins 
A)  Endotoxins 
B)  Exotoxins 
C)  Macrotoxins 
D)  Microtoxins

Question 2

Clostridium botulinum cannot produce toxins in improperly preserved foods.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following hemolysins is a phospholipase?

Accepted Answer

A)  lecithinase 
B)  Streptolysin-O 
C)  Staphylococcal -toxin 
D)  leukocidin 
A)  lecithinase 
B)  Streptolysin-O 
C)  Staphylococcal -toxin 
D)  leukocidin

Question 4

The decrease or loss of virulence of a pathogen is referred to as

Accepted Answer

A)  aging. 
B)  attenuation. 
C)  disinfectivity. 
D)  lethal dose. 
A)  aging. 
B)  attenuation. 
C)  disinfectivity. 
D)  lethal dose.

Question 5

Which of the following is the dominate genera of skin microflora?

Accepted Answer

A)  Bacteriodes 
B)  Firmicutes 
C)  Actinobacteria 
D)  Proteobacteria 
A)  Bacteriodes 
B)  Firmicutes 
C)  Actinobacteria 
D)  Proteobacteria

Question 6

Describe how orally taken antibiotics can result in the harmful alteration in digestive functions and disease.

Accepted Answer

Antibiotics inhibit the growth of the no

Question 7

A polymer coat consisting of a dense,well-defined polymer layer surrounding a cell is called a

Accepted Answer

A)  capsule. 
B)  glycocalyx. 
C)  lipopolysaccharide. 
D)  slime mold. 
A)  capsule. 
B)  glycocalyx. 
C)  lipopolysaccharide. 
D)  slime mold.

Question 8

Describe the difference between the use of streptokinase and coagulase as a defense mechanism among pathogens.

Accepted Answer

Pathogens like Streptococcus pyogens use

Question 9

Pathogenicity is the ability

Accepted Answer

A)  of the host to inflict damage on the pathogen. 
B)  of the host to resist damage by the pathogen. 
C)  of the pathogen to inflict damage on the host. 
D)  None of these are correct. 
A)  of the host to inflict damage on the pathogen. 
B)  of the host to resist damage by the pathogen. 
C)  of the pathogen to inflict damage on the host. 
D)  None of these are correct.

Exam 23: Microbial Interactions With Humans

________ are toxic proteins released from the pathogen as it grows.

Clostridium botulinum cannot produce toxins in improperly preserved foods.

Which of the following hemolysins is a phospholipase?

The decrease or loss of virulence of a pathogen is referred to as

Which of the following is the dominate genera of skin microflora?

Describe how orally taken antibiotics can result in the harmful alteration in digestive functions and disease.

A polymer coat consisting of a dense,well-defined polymer layer surrounding a cell is called a

Describe the difference between the use of streptokinase and coagulase as a defense mechanism among pathogens.

Pathogenicity is the ability

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