If a neuroscientist observed a collection of neurons that were all labeled positive for glutamate,why would she likely next decide to see which neurons also have glutamic acid decarboxylase?
A) To determine which neurons released the neurotransmitter GABA
B) To determine the synthesis steps for glutamate
C) To determine which neurons may be at risk for excitotoxicity
D) To determine if the neurons had ionotropic or metabotropic receptors

Question

Quizplus · Accepted Answer

Glutamate and GABA are both neurotransmitters in the brain, and glutamate can be converted to GABA via the enzyme glutamic acid decarboxylase. Therefore, knowing which neurons have both glutamate and glutamic acid decarboxylase can help determine which neurons release GABA as their neurotransmitter.

If a Neuroscientist Observed a Collection of Neurons That Were