Please Identify the Incorrect Definition

question 84

Multiple Choice

Please identify the incorrect definition.

• A) Cytotoxic T cell-type of lymphocyte programmed to destroy infected or cancerous "self" cells.
• B) Plasma cell-effector form of a B cell; it functions as an antibody-secreting factory.
• C) T cell receptor-molecule on a T cell that enables the T cell to recognize a specific antigen.
• D) MHC class II-molecules that cells use to present antigen to cytotoxic T cells.
• E) Fab region-portion of an antibody molecule that binds to the antigen.

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Definitions:

Chemotaxis

Attraction of living protoplasm (cells) to chemical stimuli.

Vasodilation

Increased diameter of blood vessels.

Histamine

A compound released by cells in response to injury and in allergic and inflammatory reactions, causing contraction of smooth muscle and dilation of capillaries.

Prostaglandins

A group of lipid compounds that are derived enzymatically from fatty acids and have important functions in the body, including in inflammation and as hormone-like messengers.