Question

the process by which water moves across a selectively permeable membrane is called

active transport

diffusion

osmosis

endocytosis

Explanation:

• Active transport: Requires energy (e.g., ATP) to move substances against a concentration gradient. Not specific to water.
• Diffusion: Movement of solutes (not just water) from high to low concentration.
• Osmosis: Specifically the movement of water across a selectively permeable membrane from an area of lower solute concentration (higher water concentration) to an area of higher solute concentration (lower water concentration).
• Endocytosis: A process where cells engulf substances (like large molecules or particles) by forming vesicles from the cell membrane. Not related to water movement across a membrane.

Answer:

Osmosis