Question

Given below are two statements.

Statement I - In chemical synapse, rate of transmission of impulse is higher in homeotherms than poikilotherms.

Statement II - In chemical synapse, synaptic cleft has a width of about 3.8 nm.

In light of the above statements, select the correct option given below.

Options

• Both statement I and statement II are correct.

• Both statement I and statement II are incorrect.

• Statement I is correct but statement II is incorrect.

• Statement I is incorrect but statement II is correct.

Answer 1

Statement I is correct but statement II is incorrect.

Explanation:

1. The elevated and stable body temperature of homeotherms accelerates molecular, enzymatic, and ion channel processes, resulting in faster synaptic transmission compared to poikilotherms.
2. In chemical synapse, synaptic cleft has a width of about 20 to 30nm.