Upon Binding of a Single First Messenger to a Plasma

question 184

Multiple Choice

Upon binding of a single first messenger to a plasma membrane, thousands of second messengers may becomeactivated. This effect is known as

• A) receptor down-regulation.
• B) receptor up-regulation.
• C) amplification.
• D) humoral stimuli.
• E) synergism.

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Definitions:

Structure

The arrangement or organization of parts to form an object, system, or concept.

Arenediazonium Ion

An ion consisting of a benzene ring attached to a diazonium group (\(N_2^+\)), used in synthetic chemistry to introduce various functional groups to the benzene ring.

Azo Compound

An organic compound that contains a nitrogen-nitrogen double bond, usually depicted as -N=N-, connecting two aryl or alkyl groups.

1-Pentanamine

An organic compound, specifically an amine, with a five-carbon chain and an amino group at the first carbon.