Which of the following ways are leftover neurotransmitters cleaned up if they have not been accepted by the postsynaptic neuron?
Pick 2
the neurotransmitters are broken down in the synapse

the postsynaptic neuron absorbs the neurotransmitters

The presynaptic neuron absorbs the neurotransmitters

the neurotransmitters are built up to create a new neuron

The correct answer is -

the neurotransmitters are broken down in the synapse

The presynaptic neuron absorbs the neurotransmitters

Explanation:

The termination of the neurotransmitters is essential as if they can cause harm by continuing the stimulus effect on the muscles or cells. To clean up these neurotransmitters there are two ways- Degradation of neurotransmitters with the help of enzymes in the synapses or synaptic cleft and the presynaptic neurons absorbs or suck up neurotransmitters. The neuron (presynaptic neuron) is that releases the neurotransmitter like dopamine, serotonin, is the one that re-uptake it.

This reuptake is done by transporter proteins that are are symporters in nature as these proteins pump neurotransmitters as well as ions back into the neuron.

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