GPCRs Are Receptor Proteins Found in the Plasma Membrane That

question 5

Multiple Choice

GPCRs are receptor proteins found in the plasma membrane that are important for cellular communication. What cellular structure makes GPCRs?

• A) the smooth endoplasmic reticulum
• B) the rough endoplasmic reticulum
• C) Golgi apparatus
• D) mitochondria

---

Definitions:

Inhibitory Postsynaptic Potential

A decrease in the potential of the postsynaptic neuronal membrane, making it less likely to generate an action potential.

Resting Potential

Resting potential refers to the electric potential difference across the neuronal membrane when the neuron is not actively sending a signal.

Absolute Refractory Period

The period immediately following the firing of a nerve fiber when it cannot be stimulated to fire again, no matter how strong the incoming signal.

Action Potential

A momentary change in electrical potential on the surface of a neuron that occurs when it is stimulated and is capable of transmitting a signal along the neuron.