What process is used to move large polar molecules and ions, such as Cl^- and HCO₃^-, through a cell membrane, traveling from the side of higher concentration to the side of lower concentration?

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Quizplus · Accepted Answer

Facilitated transport is the process used to move large polar molecules and ions through cell membranes, traveling from the side of higher concentration to the side of lower concentration. This process relies on the use of proteins in the membrane to act as channels or carriers for the molecules, allowing them to pass through the membrane more easily than they would be able to through simple diffusion. Active transport, on the other hand, requires the use of energy to move molecules against their concentration gradient, and effusion refers specifically to the movement of gases through a small opening.

What Process Is Used to Move Large Polar Molecules and Ions