Question

Which of the following statements about Osmosis are true? CHECK ALL THAT APPLY

A. Osmosis is actively facilitated by glycolipid channels.
B. Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient of water across the membrane.
C. Osmosis is a special case of diffusion.
D. Osmosis transports water and other solutes across a membrane.

Answer 1

Osmosis refers to the movement of water through a semipermeable membrane from higher to lower water concentration and is a type of diffusion. It is facilitated by aquaporins, not glycolipid channels, and does not transport solutes.

Step-by-step explanation:

Regarding the statements about osmosis, the correct ones include:

• B. Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient of water across the membrane.
• C. Osmosis is a special case of diffusion.

Osmosis is indeed the movement of water across a semipermeable membrane from a region of high water concentration to an area of lower water concentration, often facilitated by aquaporins. It is a passive process driven by the water concentration gradient, which is inversely proportional to the solute concentration. Unlike what is suggested by option A, glycolipid channels are not involved in osmosis — rather, aquaporins typically facilitate the movement of water. Moreover, option D is incorrect since osmosis specifically refers to the transport of water and not other solutes.