Which Statement About Cell Signaling Is False

question 132

Multiple Choice

Which statement about cell signaling is false?

• A) Cells are bombarded with numerous signals, but they do not respond to all of them.
• B) A cell must possess the specific receptor to respond to a particular signal.
• C) Chemical signaling molecules have specific binding sites.
• D) Receptor specificity in cells allows a response to a specific signal.
• E) There are only a few kinds of receptor proteins.

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Definitions:

Nocturnal

Active at night and at rest during the day.

Arboreal

Relating to or resembling a tree or life in the trees; often used to describe animals that live in trees.

Diurnal

Active during the day and at rest at night.

Hominoids

A term referring to the group of primates that includes all the great apes and humans.