Question 1

The chemical found in tears and saliva that hydrolyzes the peptidoglycan in certain bacterial cell walls is

Accepted Answer

A)  lactic acid.
B)  hydrochloric acid.
C)  lysozyme.
D)  histamine.
E)  bile.F) C) and E)
G) B) and E) C

Question 2

Which white blood cells comprise 20% to 30% of the circulating WBCs and are the cells that function in the body's specific immune system?

Accepted Answer

A)  basophils
B)  eosinophils
C)  neutrophils
D)  monocytes
E)  lymphocytesF) B) and C)
G) All of the above

Question 3

Genetic differences among species and within a species can convey genetic immunity to certain diseases.

Accepted Answer

A) True 
 B)False

Question 4

_____ function in humoral immunity,while _____ function in cell-mediated immunity.

Accepted Answer

A)  B cells;T cells
B)  T cells;B cells
C)  Monocytes;basophils
D)  Basophils;T cells
E)  B cells;neutrophilsF) A) and C)
G) A) and D)

Question 5

All of the following are events of early inflammation except

Accepted Answer

A)  macrophages appear first and begin phagocytosis.
B)  chemical mediators and cytokines are released.
C)  brief vasoconstriction is followed by vasodilation.
D)  exudate and pus can accumulate.
E)  capillaries become more permeable,resulting in edema.F) C) and D)
G) B) and C)

Question 6

The four classic signs and symptoms of inflammation include all of the following except

Accepted Answer

A)  redness.
B)  warmth.
C)  swelling.
D)  pain.
E)  chills.F) A) and B)
G) A) and C)

Question 7

Your sister has just been diagnosed with systemic lupus erythematosis,or lupus,which is an autoimmune disease.This means:

Accepted Answer

A)  her immune system has rejected some of her tissues and organs.
B)  her immune system has developed an allergic reaction to some of her tissues.
C)  her immune system is correctly distinguishing between self markers and nonself markers.
D)  she has an excess of phagocytic cells.E) A) and D)
F) A) and C) A

Question 8

This body region is protected by fatty acids,acidic pH,lactic acid,and a tough cell barrier with its own normal biota:

Accepted Answer

A)  skin
B)  respiratory tract
C)  digestive tract
D)  urinary tract
E)  eyesF) A) and D)
G) B) and E)

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

A)  lymph nodes
B)  thymus
C)  spleen
D)  GALT
E)  tonsilsF) B) and C)
G) B) and E)

Question 11

Endotoxin is an exogenous pyrogen.

Accepted Answer

A) True 
 B)False

Question 12

During what process are hypochlorite and hydrogen peroxide produced in order to destroy bacteria and inhibit viral replication?

Accepted Answer

A)  inflammation
B)  phagocytosis
C)  interferon production
D)  complement production
E)  lysozyme productionF) C) and D)
G) All of the above

Question 13

Plasma cells

Accepted Answer

A)  function in cell-mediated immunity.
B)  are derived from T lymphocytes.
C)  function in blood clotting.
D)  produce and secrete antibodies.E) B) and D)
F) B) and C)

Question 14

The granules of eosinophils contain

Accepted Answer

A)  antibodies.
B)  antigens.
C)  serotonin.
D)  histamine.
E)  peroxidase.F) B) and D)
G) A) and B) E

Question 15

The main function of the mononuclear phagocyte system is to provide

Accepted Answer

A)  surveillance cells.
B)  a connection between tissues and organs.
C)  filtration of extracellular fluid.
D)  filtration of blood.E) B) and C)
F) C) and D)

Question 16

A type of monocyte that has long,thin processes to trap pathogens is a

Accepted Answer

A)  dendritic cell.
B)  eosinophil.
C)  macrophage.
D)  platelet.
E)  mast cell.F) B) and D)
G) A) and C)

Question 17

What is the first step in the major events of the inflammatory process?

Accepted Answer

A)  formation of pus and edema
B)  scar formation and/or resolution
C)  vascular reactions
D)  injury and mast cells releasing chemical mediators
E)  activation of complementF) B) and D)
G) D) and E)

Question 18

B lymphocytes and T lymphocytes mature in the thymus gland.

Accepted Answer

A) True 
 B)False

Question 19

Which type of white blood cell is particularly attracted to sites of parasitic worm infections?

Accepted Answer

A)  monocytes
B)  eosinophils
C)  basophils
D)  neutrophils
E)  lymphocytesF) A) and E)
G) B) and E)

Question 20

During phagocytosis,intracellular digestion begins as soon as the phagosome is formed.

Accepted Answer

A) True 
 B)False

Exam 14: Host Defenses I: Overview and Nonspecific Defenses

The chemical found in tears and saliva that hydrolyzes the peptidoglycan in certain bacterial cell walls is

Correct AnswerverifiedC

Which white blood cells comprise 20% to 30% of the circulating WBCs and are the cells that function in the body's specific immune system?

Correct AnswerverifiedShow Answer

Genetic differences among species and within a species can convey genetic immunity to certain diseases.

Correct AnswerverifiedShow Answer

_____ function in humoral immunity,while _____ function in cell-mediated immunity.

Correct AnswerverifiedShow Answer

All of the following are events of early inflammation except

Correct AnswerverifiedShow Answer

The four classic signs and symptoms of inflammation include all of the following except

Correct AnswerverifiedShow Answer

Your sister has just been diagnosed with systemic lupus erythematosis,or lupus,which is an autoimmune disease.This means:

Correct AnswerverifiedA

This body region is protected by fatty acids,acidic pH,lactic acid,and a tough cell barrier with its own normal biota:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Endotoxin is an exogenous pyrogen.

Correct AnswerverifiedShow Answer

During what process are hypochlorite and hydrogen peroxide produced in order to destroy bacteria and inhibit viral replication?

Correct AnswerverifiedShow Answer

Plasma cells

Correct AnswerverifiedShow Answer

The granules of eosinophils contain

Correct AnswerverifiedE

The main function of the mononuclear phagocyte system is to provide

Correct AnswerverifiedShow Answer

A type of monocyte that has long,thin processes to trap pathogens is a

Correct AnswerverifiedShow Answer

What is the first step in the major events of the inflammatory process?

Correct AnswerverifiedShow Answer

B lymphocytes and T lymphocytes mature in the thymus gland.

Correct AnswerverifiedShow Answer

Which type of white blood cell is particularly attracted to sites of parasitic worm infections?

Correct AnswerverifiedShow Answer

During phagocytosis,intracellular digestion begins as soon as the phagosome is formed.

Correct AnswerverifiedShow Answer

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C

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_ function in humoral immunity,while _ function in cell-mediated immunity.

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A

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E

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