Question
Biology Question on neural control and coordination
Which of these is an excitatory neurotransmitter in brain?
A
GABA
B
Glycine
C
Glutamate
D
Aspartate
Answer
Glutamate
Explanation
Solution
Neurotransmitters are chemicals released from a presynaptic neuron that interact with specific receptor sites of a postsynaptic neuron. There are two broad categories of neurotransmitters, neuroexcitatory and neuroinhibitory. Acetylcholine, glutamate, epinephrine, norepinephrine etc, are neurostimulatory while glycine, gamma amino butyric acid (GABA) etc, are neuroinhibitory.
So, the correct answer is (C): Glutamate