Question

this video shows osmosis. select the true statements. osmosis uses cellular energy. water molecules can cross the cell membrane by simple diffusion. water molecules move down their concentration gradient. water molecules can cross the cell membrane by facilitated diffusion.

Explanation:

• Osmosis is a passive process, so it does not use cellular energy.
• Water molecules can cross the cell membrane by simple diffusion (directly through the lipid bilayer) and by facilitated diffusion (through aquaporins).
• In osmosis, water molecules move down their concentration gradient (from an area of higher water concentration to an area of lower water concentration).

Answer:

• Water molecules can cross the cell membrane by simple diffusion.
• Water molecules move down their concentration gradient.
• Water molecules can cross the cell membrane by facilitated diffusion.