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Control and Co-ordination — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYControl and Co-ordination5 Marks
Question
Answer the questions after observing the diagram given below.
Image
(1) What do the synaptic vesicles contain?
(2) What process is used to release the neurotransmitter ?
(3) What should be the reason for the next impulse to be conducted?
(4) Will the impulse be carried by post synaptic membrane even if one pre-synaptic neuron is there?
(5) Can you name the channel responsible for their transmission?
✓

Answer

A-1 Synaptic vesicles contain a neurotransmitter – acetyl choline.
A-2 Exocytosis.
A-3 Removal of neurotransmitter by the action of acetyl cholinesterase.
A-4 As far as impulse is transmitted by pre-synaptic neuron, it will be received by post-synaptic neuron.
A-5 $Ca^{++}$ channel

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