AP BIOLOGY

Detailed explanation-1: -This is a type of passive transport in which molecules that cross the cell membrane move quickly due to the presence of specific permeases in the membrane. Facilitated diffusion occurs only in the direction of a concentration gradient and does not require metabolic energy.

Detailed explanation-2: -Osmosis is a form of passive transport when water molecules move from low solute concentration(high water concentration) to high solute or low water concentration across a membrane that is not permeable to the solute.

Detailed explanation-3: -Osmosis is a passive transport process during which water moves from areas where solutes are less concentrated to areas where they are more concentrated.

Detailed explanation-4: -Osmosis happens when molecules move from higher to lower concentrations, but diffusion happens when it is reversed.

Detailed explanation-5: -Osmosis is the diffusion of water through a semipermeable membrane according to the concentration gradient of water across the membrane.