M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:

Regarding neural communication, which statements are TRUE?

I. The dendrites of a neuron receive messages from other neurons.
II. The action potential starts when potassium ions enter the axon.
III. Neural communication involves an electrochemical process.
IV. The dendrites of the sending neuron secrete neurotransmitters into the synapse.

A

I and III only

B

I, II, and III only

C

II and IV only

D

I, II, III, and IV