In the body,K⁺ ions behave as if they are penetrating solutes because they are actively transported into cells.

Question

Quizplus · Accepted Answer

K⁺ ions are considered non-penetrating solutes because they cannot freely cross the cell membrane without the help of specific transport mechanisms like ion channels or pumps. Active transport refers to the movement against the concentration gradient, which requires energy, but does not imply that the ions can penetrate the membrane without assistance.

In the Body,K⁺ Ions Behave as If They Are Penetrating