Why is the flow of signals in a synapse unidirectional?
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The flow of signals in a synapse is unidirectional because of the, release of neurotransmitter on one side of synapse , impluse traveles through the neurons only in one direction.
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NCERT based Answer for Class 11 Biology Students
At chemical synapses, there can be only one–way–information transfer - from a presynaptic neuron to postsynaptic neuron, muscles fiber or gland cell. This is because only synaptic bulbs of presynaptic neurons can release neurotransmitter and only postsynaptic membrane has receptors to recognize and bind that neurotransmitter.
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