Question

Which of the following statement/s is true in case of synapse?

• A. Neurotransmitters diffuse across the synapse (the gap) and bind with receptor molecules on the membrane of the next neuron
• B. Synapse is a small gap that occurs between the axon of one neuron and dendrite of the next neuron
• C. Nerve impulse reaches the synapse at the end of a neuron, it cannot pass directly to the next one
• D. All of the above

Answer 1

The correct option is D All of the above

A) This statement is true because the usual transport of impulse in nerves when separated by a synapse is through the neurotransmitter passing into the synapse in the form of vesicles and these vesicles combine with the membrane of next neuron and release the substances into the neuron crating active potential.

B) synapse is defined as the gap between two neurons that is from axon terminal of one neuron to dendrites of other. so this statement is true.

C) Nerve impulses when passing in a neuron are in the form of electrical impulses. But to pass through the synapse they need to be converted into chemical impulses.So, this statement is true.

So, the correct option is D.