19. Innate Immunity

Which of the following does not stimulate phagocytes?

a. Cytokines

b. IFN-y

c. C3b

d. Lipid A

e. Histamine

Indicate which statements are true. Correct all false statements by changing the underlined words.

__________ Wandering macrophages experience diapedesis.

Indicate which statements are true. Correct all false statements by changing the underlined words.

__________ In phagocytosis, adhesion involves the binding between complementary chemicals on a phagocyte and on the membrane of a body cell.

Label the steps of phagocytosis.

a. ________

b. ________

c. ________

d. ________

e. ________

f. ________

Indicate which statements are true. Correct all false statements by changing the underlined words.

__________ Opsonization occurs when a phagocyte’s pseudopods surround a microbe and fuse to form a sac.

Indicate which statements are true. Correct all false statements by changing the underlined words.

__________ Lysosomes fuse with phagosomes to form peroxisomes.

Indicate which statements are true. Correct all false statements by changing the underlined words.

__________ A membrane attack complex drills circular holes in a macrophage.