Question 1

The idea that communicable diseases were caused by the passage of living things from one person to another was first put forth by

Accepted Answer

A)  Fracastorius.
B)  Pasteur.
C)  Thucydides.
D)  Leeuwenhoek.

Question 2

A disease-causing microorganism or virus is referred to as a(n)

Accepted Answer

A)  avirulent infection.
B)  colony.
C)  commensal.
D)  pathogen.

Question 3

Why is it a good strategy for a microbe to adhere to a receptor that plays a critical function for a host cell?

Accepted Answer

A)  It ISN'T a good strategy-host cells could shift to a backup receptor and shut down production of the main receptor, preventing infection.
B)  If it's a receptor the cell MUST use, it doesn't have a backup system in place to switch to-so, even though it makes it susceptible to infection, it HAS to put that target out there.This benefits the microbe.
C)  Microbes want to evade detection and elimination by the immune system-the closer they can adhere to host cells, the less likely they are to trigger destructive immune responses.This would be similar to using a hostage as a shield in a police-standoff situation.
D)  It ISN'T a good strategy-by binding to receptors, microbes will be phagocytosed by cells and destroyed within them.

Question 4

The first step in the establishment of infection is that the organism must

Accepted Answer

A)  invade host tissues.
B)  attach to host cells.
C)  evade phagocytes.
D)  produce toxins.

Question 5

Which of the following does S. pneumoniae use to survive in the host?

Accepted Answer

A)  plasmids
B)  pili
C)  flagella
D)  capsules

Question 6

Species of both Shigella and Streptococcus

Accepted Answer

A)  invade host cells.
B)  produce a toxin.
C)  cause ergot poisoning.
D)  are delivered via flea bites.
E)  invade host cells AND produce a toxin.

Exam 16: Host-Microbe Interactions

A disease-causing microorganism or virus is referred to as a(n)

Correct Answer
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The idea that communicable diseases were caused by the passage of living things from one person to another was first put forth by

Correct Answer
verified

Which of the following does S. pneumoniae use to survive in the host?

Correct Answer
verified

The first step in the establishment of infection is that the organism must

Correct Answer
verified

Species of both Shigella and Streptococcus

Correct Answer
verified

Why is it a good strategy for a microbe to adhere to a receptor that plays a critical function for a host cell?

Correct Answer
verified

Exam 16: Host-Microbe Interactions

A disease-causing microorganism or virus is referred to as a(n)

Correct AnswerverifiedShow Answer

The idea that communicable diseases were caused by the passage of living things from one person to another was first put forth by

Correct AnswerverifiedShow Answer

Which of the following does S. pneumoniae use to survive in the host?

Correct AnswerverifiedShow Answer

The first step in the establishment of infection is that the organism must

Correct AnswerverifiedShow Answer

Species of both Shigella and Streptococcus

Correct AnswerverifiedShow Answer

Why is it a good strategy for a microbe to adhere to a receptor that plays a critical function for a host cell?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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