Question

watch the video again. it shows the movement of water molecules across the cell membrane during osmosis. osmosis occurs without using energy from the cell. complete the paragraph. osmosis is the transport of water molecules their concentration gradient. during osmosis, water molecules can move via diffusion through channel proteins or via diffusion through phospholipids.

Explanation:

Osmosis is a passive - transport process where water molecules move from an area of high water concentration to an area of low water concentration (down their concentration gradient). Water can move through aquaporins (channel proteins) via facilitated diffusion or directly through the phospholipid bilayer via simple diffusion.

Answer:

passive; down; facilitated; simple