At Metabotropic Receptors, A(n)

question 142

Multiple Choice

At metabotropic receptors, a(n)

• A) neurotransmitter binding to a receptor stimulates a G -protein, which then activates a second messenger through one or more enzymatic actions.
• B) neurotransmitter binding to a receptor opens or closes channels that are part of the same protein as the receptor.
• C) neurotransmitter binding to a receptor opens channels that are a separate protein from the receptor.
• D) ion binding to a receptor opens channels in the plasma membrane.
• E) neurotransmitter binding to a receptor opens or closes channels that are a separate protein from the receptor.

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