The Na⁺ and K⁺ ion gradients across the plasma membrane are produced primarily by the

Question

Quizplus · Accepted Answer

The Na⁺-K⁺ pump actively transports ions across the plasma membrane, creating a gradient. The lipid bilayer is impermeable to charged ions, and the ratio of these ions in the blood does not directly affect their movement across the membrane. Voltage-gated channels can allow ions to flow across the membrane, but they do not generate the ion gradients.

The Na+ and K+ Ion Gradients Across the Plasma Membrane

The Na⁺ and K⁺ Ion Gradients Across the Plasma Membrane