Deck 11: General-Properties-Of-The-Immune-System

Question 1

The principal function of the immune system is:

A)Defense against cancer
B)Repair of injured tissues
C)Defense against microbial infections
D)Prevention of inflammatory diseases
E)Protection against environmental toxins

Answer 1

Defense against microbial infections

Question 2

Which of the following cell types is required for all humoral immune responses?

A)Natural killer cells
B)Dendritic cells
C)Cytolytic T lymphocytes
D)B lymphocytes
E)Helper T lymphocytes

Answer 2

B lymphocytes

Question 3

Which of the following is a unique property of the adaptive immune system?

A)Highly diverse repertoire of specificities for antigens
B)Self-nonself discrimination
C)Recognition of microbial structures by both cell-associated and soluble receptors
D)Protection against viral infections
E)Responses that have the same kinetics and magnitude on repeated exposure to the same microbe

Answer 3

Highly diverse repertoire of specificities for antigens

Question 4

Antibodies and T lymphocytes are the respective mediators of which two types of immunity?

A)Innate and adaptive
B)Passive and active
C)Specific and nonspecific
D)Humoral and cell-mediated
E)Adult and neonatal

Question 5

The two major functional classes of effector T lymphocytes are:

A)Helper T lymphocytes and cytotoxic T lymphocytes
B)Natural killer cells and cytotoxic T lymphocytes
C)Memory T cells and effector T cells
D)Helper cells and antigen-presenting cells
E)Cytotoxic T lymphocytes and target cells

Question 6

Which of the following infectious diseases was prevented by the first successful vaccination?

A)Polio
B)Tuberculosis
C)Smallpox
D)Tetanus
E)Rubella