Peptide Hormones

question 40

Multiple Choice

Peptide hormones

• A)are able to pass through the membrane and bind to a receptor in the cytoplasm.
• B)bind to a receptor in the plasma membrane.
• C)act much more slowly than steroid hormones.
• D)initiate gene expression.
• E)are composed of a complex of 4 carbon rings.

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Definitions:

Cochleas

Spiral-shaped organs located in the inner ear responsible for converting sound waves into electrical signals that can be interpreted by the brain.

Gustatory Perception

The sensory impression of food or other substances on the taste buds of the tongue.

Place Theory

A theory in hearing that proposes different areas of the basilar membrane respond to different frequencies.

Frequency Theory

A theory in psychology and audiology that suggests pitch is perceived by the rate at which auditory nerve fibers fire.