During Depolarization of the Plasma Membrane

question 19

Multiple Choice

During depolarization of the plasma membrane,

• A)sodium ions move rapidly into the cell.
• B)potassium ions move rapidly out of the cell.
• C)membrane permeability to sodium ions decreases.
• D)the outside of the cell becomes positively charged relative to the inside.
• E)sodium ions move rapidly out of the cell.

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Definitions:

Proteins

Large, complex molecules essential for structure, function, and regulation of the body's cells, tissues, and organs, composed of amino acids.

Denatured

Refers to a structural change in a protein that results in the loss of its biological properties, often due to heat, acid, or other chemical agents.

Hydrochloric Acid

A strong, corrosive acid found in gastric juice that helps digest food in the stomach.

Chemical Digestion

The breakdown of food into smaller components by enzymatic reactions, allowing nutrients to be absorbed into the bloodstream.