When a Catecholamine or Peptide Hormone Binds to Receptors on the Surface

question 42

Multiple Choice

When a catecholamine or peptide hormone binds to receptors on the surface of a cell,

• A) the cell membrane becomes less permeable.
• B) a second messenger appears in the cytoplasm.
• C) the cell becomes inactive.
• D) the hormone is transported to the nucleus where it alters the activity of DNA.
• E) None of the answers are correct.

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Definitions:

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