Question

accurately describe diffusion or osmosis. osmosis involves the movement of water across a cell membrane toward an area of higher concentration of solutes and requires atp. osmosis involves the movement of water across a cell membrane toward an area of high concentration of solutes resulting in an increase of water and the spreading out of solutes. diffusion involves the movement of water across the cell membrane to increase particle or solute levels inside the cell. diffusion involves the movement of particles or molecules across the cell membrane from an area of high concentration to an area of low concentration. osmosis involves the movement of water across a cell membrane due to the concentration of

Explanation:

Osmosis is the movement of water across a semi - permeable membrane from an area of lower solute concentration to an area of higher solute concentration and is a passive process (no ATP required). Diffusion is the movement of particles or molecules from an area of high concentration to an area of low concentration across a membrane or in a medium. The first three options have inaccuracies. Option 1 wrongly states that osmosis requires ATP. Option 2 wrongly says that osmosis results in the spreading out of solutes (osmosis is about water movement). Option 3 wrongly defines diffusion as the movement of water to increase solute levels inside the cell. Option 4 correctly defines diffusion.

Answer:

D. Diffusion involves the movement of particles or molecules across the cell membrane from an area of high concentration to an area of low concentration.