Question

Which of the following statements about electrical synapse are CORRECT.
(A). In this type of synapse gap between the neighboring neurons is very narrow.
(B). The electrical conductive link is formed between pre and post synaptic neuron.
(C). At the gap junction, the two cells are within almost 4.8 nm distance of each other.
(D). Transmission across the gap is slower, but it depends on the connection located at the gap junctions between the two neurons.
Choose the correct answer from the options given below:

• (A) and (B) are correct
• (A) and (C) are correct
• (B) and (D) are correct
• (C) and (D) are correct.

Hint:

Electrical synapses are fast and the gap is about 3.5 nm, not 4.8 nm.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept
In an electrical synapse the membranes of two neurons are connected by gap junctions.

Step 2: True statements
(A) The gap is very narrow. (B) A direct electrically conductive link joins the pre- and postsynaptic neurons.

Step 3: False statements
(C) The gap is only a few nanometres, and the value of 4.8 nm is not accepted. (D) Transmission is faster, not slower, than at chemical synapses.

Step 4: Conclusion
Only (A) and (B) are correct.

Final Answer:
Statements (A) and (B) are correct. \[ \boxed{\text{(A) }\text{(A) and (B) are correct}} \]