Which does not apply to the diffusion of O₂, CO₂and small hydrophobic molecules across a membrane? A) Diffusion is driven by the concentration gradient across the membrane. B) The diffusion is spontaneous and there is a decrease in free energy as diffusion occurs. C) The transport is saturatable. D) Membrane proteins are not needed for the diffusion process.

Question

Quizplus · Accepted Answer

The transport of O2, CO2, and small hydrophobic molecules across a membrane is not saturatable because it occurs via simple diffusion, which does not involve transport proteins that can become saturated.

Which Does Not Apply to the Diffusion of O2, CO2

Which Does Not Apply to the Diffusion of O₂, CO₂