Read the following statements and find out the incorrect statements.
a. A synapse is formed by the membranes of a pre-synaptic neuron and a post-synaptic neuron, which may or may not be separated by a gap called synaptic cleft.
b. At electrical synapses, the membranes of pre-and post-synaptic neurons are in very close proximity.
c. Electrical current can flow directly from one neuron into the other across chemical synapses.
d. Impulse trasmission across a chemical synapse is always faster than that across a electric synapse.
e. Electrical synapses are rare in our system.

Options

A. a and b
B. b and c
C. c and d
D. d and e

Answer

C

Explanation

Electrical current can flow directly from one neuron into the other across electrical synapses.
Impulse transmission across an electric synapse is always faster than that across a chemical synapses.