Question 1

All of the following are components of the inflammatory process EXCEPT

Accepted Answer

A)   diapedesis.
B)   chemotaxis.
C)   dilation of blood vessels.
D)   release of histamines and prostaglandins.
E)   antibody synthesis.

Question 2

A child falls and suffers a deep cut on her leg. The cut went through her skin and she is bleeding. Which of the following defense mechanisms will participate in eliminating contaminating microbes?

Accepted Answer

A)   normal skin flora
B)   lysozyme
C)   acidic skin secretions
D)   mucociliary escalator
E)   phagocytosis in the inflammatory response

Question 3

Which of the following statements about fixed macrophages is FALSE?

Accepted Answer

A)   They are mature monocytes.
B)   They gather at sites of infection.
C)   They are cells of the mononuclear phagocytic system.
D)   They develop from neutrophils.
E)   They are found in certain tissues and organs.

Question 4

After ingesting a pathogen, lysosomal enzymes produce all of the following EXCEPT

Accepted Answer

A)   complement.
B)   HOCl.
C)   O₂-.
D)   H₂O₂.
E)   OH.

Question 5

Macrophages arise from which of the following?

Accepted Answer

A)   eosinophils
B)   neutrophils
C)   monocytes
D)   basophils
E)   lymphocytes

Question 6

Phagocytes utilize all of the following to optimize interaction with (getting to and getting hold of)  microorganisms EXCEPT

Accepted Answer

A)   chemotaxis.
B)   complement.
C)   trapping a bacterium against a rough surface.
D)   opsonization.
E)   lysozyme.

Question 7

Activation of C3a results in

Accepted Answer

A)   opsonization.
B)   acute inflammation.
C)   attraction of phagocytes.
D)   increased blood vessel permeability.
E)   cell lysis.

Question 8

Which of the following statements is TRUE?

Accepted Answer

A)   Complement activity is antigen-specific.
B)   Complement increases after immunization.
C)   All of the complement proteins are constantly active in serum.
D)   There are at least thirty complement proteins.
E)   Factors B, D, and P cause cytolysis.

Question 9

Complement proteins in their intact and unactivated form act as opsonins by binding to microorganisms and promoting phagocytosis.

Accepted Answer

A) True 
 B)False

Question 10

Normal microbiota provide protection from infection in each of the following ways EXCEPT

Accepted Answer

A)   they make the chemical environment unsuitable for nonresident bacteria.
B)   they produce antibacterial chemicals.
C)   they produce lysozyme.
D)   they change the pH of the environment.
E)   they compete with pathogens for nutrients.

Question 11

Aspirin alleviates pain, inflammation, and fever by inhibiting prostaglandins.

Accepted Answer

A) True 
 B)False

Question 12

Margination refers to

Accepted Answer

A)   adherence of phagocytes to the lining of blood vessels.
B)   the adherence of phagocytes to microorganisms.
C)   the chemotactic response of phagocytes.
D)   dilation of blood vessels.
E)   the movement of phagocytes through walls of blood vessels.

Question 13

The lectin pathway for complement action is initiated by

Accepted Answer

A)   mannose on the surface of microbes.
B)   gram-negative cell walls.
C)   mannose on host membranes.
D)   gram-positive cell walls.
E)   lectins of the microbe.

Exam 29: Innate Immunity: Nonspecific Defenses of the Host

Which of the following statements is TRUE?

Correct Answer
verified

Macrophages arise from which of the following?

Correct Answer
verified

All of the following are components of the inflammatory process EXCEPT

Correct Answer
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Which of the following statements about fixed macrophages is FALSE?

Correct Answer
verified

A child falls and suffers a deep cut on her leg. The cut went through her skin and she is bleeding. Which of the following defense mechanisms will participate in eliminating contaminating microbes?

Correct Answer
verified

Activation of C3a results in

Correct Answer
verified

After ingesting a pathogen, lysosomal enzymes produce all of the following EXCEPT

Correct Answer
verified

The lectin pathway for complement action is initiated by

Correct Answer
verified

Normal microbiota provide protection from infection in each of the following ways EXCEPT

Correct Answer
verified

Margination refers to

Correct Answer
verified

Aspirin alleviates pain, inflammation, and fever by inhibiting prostaglandins.

Correct Answer
verified

Complement proteins in their intact and unactivated form act as opsonins by binding to microorganisms and promoting phagocytosis.

Correct Answer
verified

Phagocytes utilize all of the following to optimize interaction with (getting to and getting hold of) microorganisms EXCEPT

Correct Answer
verified

Exam 29: Innate Immunity: Nonspecific Defenses of the Host

Which of the following statements is TRUE?

Correct AnswerverifiedShow Answer

Macrophages arise from which of the following?

Correct AnswerverifiedShow Answer

All of the following are components of the inflammatory process EXCEPT

Correct AnswerverifiedShow Answer

Which of the following statements about fixed macrophages is FALSE?

Correct AnswerverifiedShow Answer

A child falls and suffers a deep cut on her leg. The cut went through her skin and she is bleeding. Which of the following defense mechanisms will participate in eliminating contaminating microbes?

Correct AnswerverifiedShow Answer

Activation of C3a results in

Correct AnswerverifiedShow Answer

After ingesting a pathogen, lysosomal enzymes produce all of the following EXCEPT

Correct AnswerverifiedShow Answer

The lectin pathway for complement action is initiated by

Correct AnswerverifiedShow Answer

Normal microbiota provide protection from infection in each of the following ways EXCEPT

Correct AnswerverifiedShow Answer

Margination refers to

Correct AnswerverifiedShow Answer

Aspirin alleviates pain, inflammation, and fever by inhibiting prostaglandins.

Correct AnswerverifiedShow Answer

Complement proteins in their intact and unactivated form act as opsonins by binding to microorganisms and promoting phagocytosis.

Correct AnswerverifiedShow Answer

Phagocytes utilize all of the following to optimize interaction with (getting to and getting hold of) microorganisms EXCEPT

Correct AnswerverifiedShow Answer

Correct Answer
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