Which of the Following Is/are True of Platelets

question 2

Multiple Choice

Which of the following is/are true of platelets?

• A) Platelets have a nucleus.
• B) There is a reserve of platelets in the microvasculature or spleen.
• C) Platelets are derived from polymorphonuclear leukocytes (PMNs).
• D) a, b, and c
• E) a and c

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Definitions:

Toxins

Poisonous substances produced by living cells or organisms that can cause disease when introduced into the body tissues.

Complement System

A part of the immune system that enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism.

Clonal Selection

Lymphocyte activation in which a specific antigen causes activation, cell division, and differentiation only in cells that express receptors with

Mitotic Expansion

The increase in cell number through the process of mitosis, where a single cell divides to form two genetically identical daughter cells.