When a Neurotransmitter Molecule Binds Briefly with a Receptor Site

question 25

Multiple Choice

When a neurotransmitter molecule binds briefly with a receptor site, changes occur in the receiving neuron's charge. If there is a voltage shift in a negative direction, then the effect is:

• A) inhibitory, and so the probability that the receiving neuron will fire decreases.
• B) excitatory, and so the probability that the receiving neuron will fire increases.
• C) inhibitory, and so the probability that the receiving neuron will fire increases.
• D) excitatory, and so the probability that the receiving neuron will fire decreases.

---

Definitions:

Message Array

An array used to store a sequence of characters that form a message.

Gets()

A function in C that reads a line of text from the standard input (stdin) into a buffer, stopping at a newline character or EOF, noted for its vulnerability to buffer overflows.