AP BIOLOGY

Detailed explanation-1: -Osmosis is a special type of diffusion, namely the diffusion of water across a semipermeable membrane. Water readily crosses a membrane down its potential gradient from high to low potential (Fig. 19.3) [4]. Osmotic pressure is the force required to prevent water movement across the semipermeable membrane.

Detailed explanation-2: -Excerpt. In physiology, osmosis (Greek for push) is the net movement of water across a semipermeable membrane. Across this membrane, water will tend to move from an area of high concentration to an area of low concentration.

Detailed explanation-3: -The diffusion of water molecules through a selectively permeable membrane is known as osmosis.