Osmosis is a form of passive transport.what defines osmosis?

Osmosis is defined as the movement of solvent molecules (usually water) from an area of lower solute concentration (higher water concentration) to an area of higher solute concentration (lower water concentration) through a selectively permeable membrane. It is a type of passive transport because it does not require energy input from the cell.

Osmosis is indeed a form of passive transport. It is the movement of solvent molecules (usually water) across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration. This movement occurs in order to equalize the solute concentration on both sides of the membrane, resulting in the net movement of water molecules. Unlike active transport, osmosis does not require the input of energy from the cell.