Which of the following molecules do GPCRs not respond to?
A) Catecholamines
B) Oxytocin
C) Light
D) Dopamine
E) Insulin

Question

Quizplus · Accepted Answer

GPCRs (G protein-coupled receptors) do not respond to insulin. Insulin interacts with a specific insulin receptor, which is a tyrosine kinase receptor, not a GPCR. GPCRs respond to a wide variety of signals including hormones like catecholamines (A) and oxytocin (B), neurotransmitters like dopamine (D), and even physical stimuli like light (C) in the case of rhodopsin in the eye.

Which of the Following Molecules Do GPCRs Not Respond To