Question

GABA in the context of appetite regulation:

A) GABA is a neuropeptide produced by neurons in the PVN, which inhibits food intake

B) POMC neurons produce the neuropeptide, GABA, to increase food intake

C) AgRP/NPY neurons produce the neuropeptide GABA, which inhibits POMC neurons

Answer 1

GABA is a neurotransmitter that inhibits food intake. It is produced by neurons in the PVN.

Step-by-step explanation:

GABA, or gamma-aminobutyric acid, is a neurotransmitter that plays a role in appetite regulation in the brain. GABA acts as an inhibitory neurotransmitter, meaning it decreases the activity of neurons. Option A is correct, as GABA is produced by neurons in the paraventricular nucleus (PVN) of the hypothalamus and inhibits food intake. Option B is incorrect, as POMC neurons produce other neuropeptides that actually decrease food intake. Option C is also incorrect, as AgRP/NPY neurons produce neuropeptides that stimulate food intake, not inhibit POMC neurons.