An Increase in Extracellular Potassium Ion from 4

question 8

Multiple Choice

An increase in extracellular potassium ion from 4.0 to 6.0 mEq/L would

• A) hyperpolarize the resting membrane potential.
• B) make it more difficult to reach threshold and produce an action potential.
• C) hypopolarize the resting membrane potential.
• D) alter the threshold potential.

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Definitions:

Monozygotic

Another term for identical twins, indicating they originated from a single zygote.

Chromosomes

Structures within cells that contain the organism's genetic material (DNA) and are responsible for determining the characteristics of an organism.

Sperm Cells

Male reproductive cells vital for sexual reproduction, responsible for fertilizing the female ovum.

Brain Cells

The cells in the brain, including neurons and glial cells, which are responsible for processing information, signaling, and maintaining the brain's structure and function.