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Hi students, neurotransmitters are small molecules that transmit signals from one neuron to another across the synapse.
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Each neurotransmitters have different functions.
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They are synthesized and released from nerve endings into the synaptic left.
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Then these neurotransmitters bind to receptor proteins present on the surface of the target cell.
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The target cells get excited or inhibited or functionally modified.
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In some other way.
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There are between 200 to 300 known neurotransmitters in our body.
00:39
Some of them are acetylcholine, norapine dopamine, gamma aminobutyric acid that is gaba, glutamate, serotonin and histamine.
00:52
Now this question is asking us to find something that is not a neurotransmitter.
00:57
Among the given options it is obviously thyroxin.
01:01
All others are neurotransmitters.
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Anyway, let's analyze our options.
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The first one is gaba, or we can say gamma aminobutoric acid, right? it is an inhibitory neurotransmitter, which means it inhibits the action of target cell.
01:18
Secondly, thyroxin...