Which of the Following Describes the Ion Channels of a Resting

question 21

Multiple Choice

Which of the following describes the ion channels of a resting neuron?

• A) The channels are always open, but the concentration gradients of ions frequently change.
• B) The channels are always closed, but ions move closer to the channels during excitation.
• C) The channels are open or closed depending on their type, and are specific as to which ion can traverse them.
• D) The channels are open in response to stimuli, and then they close simultaneously.

---

Definitions:

Body Mass Index

A measurement calculated by dividing a person's weight in kilograms by the square of their height in meters, used to assess whether an individual has a healthy body weight for their height.

Close Relationships

Interpersonal relationships characterized by strong, deep, or close association between two or more individuals.

Cooperation

The process or action of working together towards a common goal or benefit.

Human Need

Essential requirements for physical and psychological well-being in humans.