Multiple Choice
1. Eosinophils are involved in the immune response against:
A. viruses.
B. intracellular bacteria.
C. parasites that cannot be phagocytized.
D. extracellular bacteria.
ANS: C
2. Which of the following are components of both innate and adaptive immune responses?
A. Immunoglobulins
B. T helper cells
C. Macrophages
D. B cells
ANS: C
3. The process by which leukocytes are attracted to a specific area by chemical messengers is called:
A. diapedesis.
B. degranulation.
C. chemotaxis.
D. opsonization.
ANS: C
4. Which of the following is a characteristic of natural killer cells?
A. They mature in the thymus.
B. They are smaller than B and T cells.
C. They are a type of lymphocyte.
D. They are part of the adaptive immune system.
,ANS: C
, 5. Which of the following best describes diapedesis?
A. Movement toward increasing concentrations of a cytokine
B. Attachment of immunoglobulin to target cells