Of the Following, a Receptor Protein in a Membrane That

question 44

Multiple Choice

Of the following, a receptor protein in a membrane that recognizes a chemical signal is most similar to

• A)the active site of an allosteric enzyme in the cytoplasm that binds to a specific substrate.
• B)RNA specifying the amino acids in a polypeptide.
• C)a particular metabolic pathway operating within a specific organelle.
• D)an enzyme with an optimum pH and temperature for activity.
• E)genes making up a chromosome.

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Definitions:

Necrotic

Pertaining to the death of cells or tissues in the body, often as a result of disease, injury, or lack of blood supply.

Autonomic Nervous System

A part of the nervous system that controls involuntary actions of the smooth muscles and heart and also regulates glandular functions.

Glands

Organs in the body that secrete hormones or other substances directly into the blood or onto a body surface.

Smooth Muscles

Involuntary muscles found in various parts of the body, such as the intestines and blood vessels, that contract and relax without conscious control.