Question

phospholipid bilayer slowly. water molecules can travel more quickly across the cell membrane through integral proteins called aquaporins. this video shows osmosis. select the true statements. water molecules can only cross the cell membrane by facilitated diffusion. osmosis does not need cellular energy. water molecules cannot cross the cell membrane by simple diffusion. water molecules move against their concentration gradient.

Explanation:

Osmosis is a passive - transport process where water moves across a semi - permeable membrane from an area of high water concentration to an area of low water concentration. It does not require the cell to expend energy (ATP). Water can cross the cell membrane by simple diffusion slowly and by facilitated diffusion through aquaporins more quickly. Water moves down its concentration gradient, not against it. So the statement that osmosis does not need cellular energy is true.

Answer:

B. Osmosis does not need cellular energy.