Question

1) Class II MHC molecules are found on which of the following?

liver cells and macrophages in the spleen

granulocytes and microphages

red blood cells

lymphocytes and antigen-presenting cells

all body cells with a nucleus

2) Histamine increases blood flow and vascular permeability. This would account for all of the following changes that occur during inflammation except

heat of the inflamed tissue.

swelling of the inflamed tissue.

movement of defense proteins and cells into the interstitial space.

chemotaxis of phagocytes.

redness of the inflamed tissue.

3) Which of the following is not a secondary lymphoid tissue or organ?

spleen

tonsils

MALT

lymph nodes

thymus

3) All of the following are true of the primary response of humoral immunity except that

circulating antibodies undergo a gradual, sustained rise.

it depends on memory B cells.

it requires B cell differentiation into plasma cells.

it depends on antigen triggering the appropriate B cell.

it peaks 1 to 2 weeks after the initial exposure.

4) The following are steps in the cell-mediated immune response. What is the correct sequence for these steps?
1. Several cycles of mitosis occur.
2. Antigen is engulfed and presented by a macrophage.
3. Cytotoxic T cells migrate to focus of infection.
4. T cells with specific receptors recognize the antigen.
5. T cells differentiate into cytotoxic T cells or T memory cells.
6. Cytotoxic T cells release perforin and/or lymphotoxin.

Answer 1