Neural Control And Coordination Question 14
Question: One group of neurotransmitter receptors is the metabotropic receptors. Which one of the following statements about metabotropic receptors is false?
Options:
A) Both muscanaric and p-adrenergic receptors are metabotropic receptors.
B) Metabotropic receptors are coupled with A proteins.
C) Metabotropic receptors can stimulate gene expression.
D) Muscanaric receptors bind with acetylcholine.
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Answer:
Correct Answer: B
Solution:
[b] Metabotropic receptors are coupled with proteins that bind GDP.
When the receptor bind a neurotransmitter, the GDP is turned into GTP and a subunit of the G protein separates and activates effector proteins.