Question 1

Which of the following statements concerning the alternative complement system is true?

Accepted Answer

A)   It is more efficient than the classical pathway.
B)   It works best on Gram-positive bacteria.
C)   Its activation is independent of antibodies.
D)   It is not useful in the early stages of fungal infection.
E)   It plays a very significant role in the elimination of parasitic helminths.

Question 2

Which of the following substances stimulates the phagocytic activity of phagocytes?

Accepted Answer

A)   gamma interferons
B)   alpha interferons
C)   beta interferons
D)   antiviral proteins
E)   leukotrienes

Question 3

The alternative pathway for complement activation is more effective than the classical pathway.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is(are)  activities of neutrophils?

Accepted Answer

A)   formation of neutrophil extracellular traps
B)   phagocytosis
C)   enzyme production that leads to the formation of nitric oxide
D)   formation of neutrophil extracellular traps and phagocytosis.
E)   formation of neutrophil extracellular traps, phagocytosis, and production of nitric oxide.

Question 5

Which of the following cells does NOT have the ability to release histamine?

Accepted Answer

A)   mast cells
B)   basophils
C)   platelets
D)   damaged body cells
E)   macrophages

Question 6

Which of the following cells can use nonphagocytic means to kill bacteria?

Accepted Answer

A)   eosinophils
B)   macrophages
C)   neutrophils
D)   natural killer cells
E)   eosinophils and neutrophils

Question 7

The absence of necessary receptors is the basis of the defense against microbial invasion known as __________ resistance.

Accepted Answer

The answer of The absence of necessary receptors is the...

Question 8

Humans have species resistance. What is meant by this?

Accepted Answer

Because the cells and basic physiologica...

Question 9

The proportion of __________, as determined by a differential white blood cell count, can serve as a sign of disease.

Accepted Answer

The answer of The proportion of __________, as determined by...

Question 10

Which of the following leukocytes have granules in their cytoplasm that stain blue with methylene blue?

Accepted Answer

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

Question 11

Sweat glands produce __________, which destroys the cell wall of bacteria by cleaving the bonds between the sugar subunits present in the wall.

Accepted Answer

The answer of Sweat glands produce __________, which destroys the...

Question 12

Some Toll-like receptors (TLRs) are found on the surface of host cells and recognize specific microbial molecules.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is NOT considered part of the body's nonspecific lines of defense against disease?

Accepted Answer

A)   antibodies
B)   mucous membranes
C)   intact skin
D)   bloodborne chemicals
E)   phagocytic cells

Question 14

Describe at least three physical mechanisms that are part of the first line of defense.

Accepted Answer

Physical mechanisms include the skin, th...

Question 15

MACs are

Accepted Answer

A)   the initial trigger for the classical complement system.
B)   the initial trigger for the alternative complement system.
C)   the initial trigger for the lectin complement system.
D)   the end result of both the classical and alternative complement systems.
E)   the end result of only the alternative complement system.

Exam 15: Innate Immunity

Humans have species resistance. What is meant by this?

Correct Answer
verified
Because the cells and basic physiologica...
View Answer

Which of the following is(are) activities of neutrophils?

Correct Answer
verified

Which of the following statements concerning the alternative complement system is true?

Correct Answer
verified

Which of the following is NOT considered part of the body's nonspecific lines of defense against disease?

Correct Answer
verified

Which of the following cells does NOT have the ability to release histamine?

Correct Answer
verified

The proportion of __________, as determined by a differential white blood cell count, can serve as a sign of disease.

Correct Answer
verified

The alternative pathway for complement activation is more effective than the classical pathway.

Correct Answer
verified

Some Toll-like receptors (TLRs) are found on the surface of host cells and recognize specific microbial molecules.

Correct Answer
verified

Which of the following cells can use nonphagocytic means to kill bacteria?

Correct Answer
verified

Sweat glands produce __________, which destroys the cell wall of bacteria by cleaving the bonds between the sugar subunits present in the wall.

Correct Answer
verified

The absence of necessary receptors is the basis of the defense against microbial invasion known as __________ resistance.

Correct Answer
verified

Which of the following leukocytes have granules in their cytoplasm that stain blue with methylene blue?

Correct Answer
verified

Describe at least three physical mechanisms that are part of the first line of defense.

Correct Answer
verified
Physical mechanisms include the skin, th...
View Answer

MACs are

Correct Answer
verified

Which of the following substances stimulates the phagocytic activity of phagocytes?

Correct Answer
verified

Exam 15: Innate Immunity

Humans have species resistance. What is meant by this?

Correct AnswerverifiedBecause the cells and basic physiologica...View AnswerShow Answer

Which of the following is(are) activities of neutrophils?

Correct AnswerverifiedShow Answer

Which of the following statements concerning the alternative complement system is true?

Correct AnswerverifiedShow Answer

Which of the following is NOT considered part of the body's nonspecific lines of defense against disease?

Correct AnswerverifiedShow Answer

Which of the following cells does NOT have the ability to release histamine?

Correct AnswerverifiedShow Answer

The proportion of __________, as determined by a differential white blood cell count, can serve as a sign of disease.

Correct AnswerverifiedShow Answer

The alternative pathway for complement activation is more effective than the classical pathway.

Correct AnswerverifiedShow Answer

Some Toll-like receptors (TLRs) are found on the surface of host cells and recognize specific microbial molecules.

Correct AnswerverifiedShow Answer

Which of the following cells can use nonphagocytic means to kill bacteria?

Correct AnswerverifiedShow Answer

Sweat glands produce __________, which destroys the cell wall of bacteria by cleaving the bonds between the sugar subunits present in the wall.

Correct AnswerverifiedShow Answer

The absence of necessary receptors is the basis of the defense against microbial invasion known as __________ resistance.

Correct AnswerverifiedShow Answer

Which of the following leukocytes have granules in their cytoplasm that stain blue with methylene blue?

Correct AnswerverifiedShow Answer

Describe at least three physical mechanisms that are part of the first line of defense.

Correct AnswerverifiedPhysical mechanisms include the skin, th...View AnswerShow Answer

MACs are

Correct AnswerverifiedShow Answer

Which of the following substances stimulates the phagocytic activity of phagocytes?

Correct AnswerverifiedShow Answer

Correct Answer
verified
Because the cells and basic physiologica...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Physical mechanisms include the skin, th...
View Answer

Correct Answer
verified

Correct Answer
verified