AP BIOLOGY

Detailed explanation-1: -Final answer: Osmosis is the flow of water molecules from the region of higher water potential to the region of lower water potential through a semi-permeable membrane.

Detailed explanation-2: -Water always moves from the system with a higher water potential to the system with a lower water potential. Solute potential (s) decreases with increasing solute concentration; a decrease in s causes a decrease in the total water potential.

Detailed explanation-3: -Osmosis is a specific type of diffusion; it is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.

Detailed explanation-4: -A special type of passive transport is the movement of water across a membrane, or osmosis. By definition, osmosis is the diffusion of water through a selectively permeable membrane from an area of high water potential (low solute concentration) to and area of low water potential (high solute concentration).

Detailed explanation-5: -Osmosis is the net movement of water molecules from a region of higher water potential (dilute solution) to a region of lower water potential (concentrated solution), through a partially permeable membrane. Water potential describes the tendency of water to move out of a solution.