1) Identify the correct order of events during the phagocytosis of bacteria. A.

ID: 3517078 • Letter: 1

Question

1) Identify the correct order of events during the phagocytosis of bacteria.

A. Opsonization,phagocytosis,phagosome,phagolysosome,intracellularkilling

B. Phagocytosis,opsonization,phagosome,phagolysosome,intracellularkilling

C. Phagosome,phagolysosome,intracellularkilling,opsonization,phagocytosis

D. Opsonization, phagocytosis, phagolysosome, phagosome, intracellular killing

2) During the antigen-presentation of exogenous antigens, which of the following choices does not play a role in this response?

A. APCssuchasmacrophages

B. MHCI

C. MHCII
D. Thelper(CD4+)cells

E. Bcells

F. TCR

3) MHC class II is found on the following cell(s);

A. APCs such as macrophages

B. CD4+Tcells

C. CD8+ T cells

D. B cells

E. Both(a)and(d)arecorrect

F. Both (b) and (d) are correct

Answer 1 correct sequence is A opsonisation - phahocytosis-phagosome- phagolysosome

- intracellular killing.

answer 2. B cells.

answer 3. both A and D.

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