GABA is an __________ neurotransmitter. Glutamate (glutamic acid) is an __________.

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Multiple Choice

GABA is an __________ neurotransmitter. Glutamate (glutamic acid) is an __________.

Explanation:
The main idea is whether a neurotransmitter makes the postsynaptic neuron more or less likely to fire. GABA is inhibitory, meaning it lowers the chance of firing by hyperpolarizing the neuron (for example, via GABA-A opening Cl- channels or GABA-B affecting K+ channels). Glutamate is excitatory, increasing the likelihood of firing by depolarizing the neuron through receptors like NMDA, AMPA, and kainate that allow positive ions to enter. So the pair GABA inhibitory and glutamate excitatory fits the way these two neurotransmitters influence neuronal activity.

The main idea is whether a neurotransmitter makes the postsynaptic neuron more or less likely to fire. GABA is inhibitory, meaning it lowers the chance of firing by hyperpolarizing the neuron (for example, via GABA-A opening Cl- channels or GABA-B affecting K+ channels). Glutamate is excitatory, increasing the likelihood of firing by depolarizing the neuron through receptors like NMDA, AMPA, and kainate that allow positive ions to enter. So the pair GABA inhibitory and glutamate excitatory fits the way these two neurotransmitters influence neuronal activity.

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