When a Neurotransmitter Like GABA Is Acting in an Inhibitory

question 63

Multiple Choice

When a neurotransmitter like GABA is acting in an inhibitory manner which of the following is likely a result of the GABA acting on the post synaptic cell?

• A) influx of positively charged ions into the postsynaptic cell
• B) opening of chemically gated sodium channels
• C) depolarization of the postsynaptic cell membrane
• D) hyperpolarization of the postsynaptic cell membrane

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Definitions:

Pinocytosis

The process whereby a cell engulfs large amounts of liquid.

Active Transport

The movement of molecules across a cell membrane from a region of lower concentration to one of higher concentration, requiring energy.

Cell Membrane

The structure that surrounds and encloses a cell.

Lipids

A group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, phospholipids, and others.