Question 1

Microbial antagonism is the

Accepted Answer

A)  prevention of immune responses by the resident microbiota.
B)  suppression of the complement cascade by microbes.
C)  competition for nutrients, oxygen, and space between the resident microbiota and potential pathogens.
D)  inhibition of T cell binding to microbes.

Question 2

Which of the following lymphoid organs or tissues has the immunological function of filtering pathogens from the blood?

Accepted Answer

A)  Tonsils
B)  Thymus
C)  Lymph nodes
D)  Spleen
E)  GALT

Question 3

Lysozyme is found in ______.

Accepted Answer

A)  tears
B)  salivary secretions
C)  sweat from sweat glands
D)  All of the choices are correct.

Question 4

Humoral immunity involves ______, while _____ function in cell-mediated immunity.

Accepted Answer

A)  T cells; B cells
B)  monocytes; basophils
C)  B cells; neutrophils
D)  basophils; T cells
E)  B cells; T cells

Question 5

All of the following comprise the second line of defense except ______.

Accepted Answer

A)  phagocytosis
B)  fever
C)  inflammation
D)  antibody production
E)  complement proteins

Question 6

Which of the following is not an event of phagocytosis?

Accepted Answer

A)  Ingestion
B)  Destruction
C)  Diapedesis
D)  Chemotaxis
E)  Phagolysosome formation

Question 7

Which of the following is not a type of phagocyte?

Accepted Answer

A)  Monocyte
B)  Lymphocyte
C)  Macrophage
D)  Neutrophil
E)  Kupffer cell

Question 8

The production of interferon will protect the host cell from a viral infection.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is a chemical used by phagocytes to destroy ingested foreign substances?

Accepted Answer

A)  Hydrogen peroxide
B)  Nitric oxide
C)  Lactic acid
D)  Superoxide anion
E)  All of these are used.

Question 10

What type of molecules act to draw phagocytes to foreign substances?

Accepted Answer

A)  PAMPs
B)  IFNs
C)  BALTs
D)  RES
E)  MALTs

Question 11

Which protein can be produced by a virus-infected cell, in order to communicate with other cells that need to produce antiviral proteins?

Accepted Answer

A)  Albumin
B)  Histamine
C)  Interferon
D)  Complement
E)  Lysozyme

Question 12

Complement proteins are produced by the spleen.

Accepted Answer

A) True 
 B)False

Question 13

All of the following pertain to interferon except

Accepted Answer

A)  it inhibits viruses, tumors, and cancer gene expression.
B)  it increases capillary permeability and vasodilation.
C)  it is produced by certain white blood cells and tissue cells.
D)  it includes alpha, beta, and gamma types.
E)  it is a protein.

Question 14

The granules of neutrophils contain ______.

Accepted Answer

A)  histamine
B)  antigens
C)  peroxidase
D)  digestive enzymes
E)  antibodies

Question 15

Place the following cells in order from greatest to least phagocytic activity: neutrophils, eosinophils, macrophages.

Accepted Answer

A)  Macrophages, eosinophils, neutrophils
B)  Neutrophils, macrophages, eosinophils
C)  Eosinophils, macrophages, neutrophils
D)  Neutrophils, eosinophils, macrophages
E)  Macrophages, neutrophils, eosinophils

Question 16

Interferons do not protect the cell that secretes them.

Accepted Answer

A) True 
 B)False

Question 17

The circulating substances that affect the hypothalamus and initiate fever are ______.

Accepted Answer

A)  interferons
B)  lysozymes
C)  complement
D)  leukotrines
E)  pyrogens

Question 18

The membrane attack stage of the complement cascade involves

Accepted Answer

A)  initiation of the cascade.
B)  the production of inflammatory cytokines.
C)  C1q binding to surface receptors on a membrane.
D)  a ring-shaped protein digesting holes in bacterial cell membranes and virus envelopes.
E)  the cleaving of C3 to yield C3a and C3b.

Question 19

A low to moderate fever in an otherwise healthy person should be treated immediately with antipyretic drugs.

Accepted Answer

A) True 
 B)False

Question 20

During inflammation, a high neutrophil count is a common sign of bacterial infection.

Accepted Answer

A) True 
 B)False

Exam 14: Host Defenses I: Overview and Nonspecific Defenses

All of the following comprise the second line of defense except ______.

Correct AnswerverifiedShow Answer

Which protein can be produced by a virus-infected cell, in order to communicate with other cells that need to produce antiviral proteins?

Correct AnswerverifiedShow Answer

Microbial antagonism is the

Correct AnswerverifiedShow Answer

Complement proteins are produced by the spleen.

Correct AnswerverifiedShow Answer

Interferons do not protect the cell that secretes them.

Correct AnswerverifiedShow Answer

During inflammation, a high neutrophil count is a common sign of bacterial infection.

Correct AnswerverifiedShow Answer

The membrane attack stage of the complement cascade involves

Correct AnswerverifiedShow Answer

Which of the following is not a type of phagocyte?

Correct AnswerverifiedShow Answer

The circulating substances that affect the hypothalamus and initiate fever are ______.

Correct AnswerverifiedShow Answer

Which of the following is a chemical used by phagocytes to destroy ingested foreign substances?

Correct AnswerverifiedShow Answer

Which of the following is not an event of phagocytosis?

Correct AnswerverifiedShow Answer

What type of molecules act to draw phagocytes to foreign substances?

Correct AnswerverifiedShow Answer

The production of interferon will protect the host cell from a viral infection.

Correct AnswerverifiedShow Answer

All of the following pertain to interferon except

Correct AnswerverifiedShow Answer

Which of the following lymphoid organs or tissues has the immunological function of filtering pathogens from the blood?

Correct AnswerverifiedShow Answer

Humoral immunity involves ______, while _____ function in cell-mediated immunity.

Correct AnswerverifiedShow Answer

A low to moderate fever in an otherwise healthy person should be treated immediately with antipyretic drugs.

Correct AnswerverifiedShow Answer

The granules of neutrophils contain ______.

Correct AnswerverifiedShow Answer

Place the following cells in order from greatest to least phagocytic activity: neutrophils, eosinophils, macrophages.

Correct AnswerverifiedShow Answer

Lysozyme is found in ______.

Correct AnswerverifiedShow Answer

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Humoral immunity involves __, while _ function in cell-mediated immunity.

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