Question

osmosis is a form of passive transport. which defines osmosis? (1 point)
the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy
the movement of water across a semipermeable membrane up a concentration gradient from low to high, using no energy
the movement of water across a semipermeable membrane up a concentration gradient from low to high, using energy
the movement of water across a semipermeable membrane down a concentration gradient from high to low, using energy

Explanation:

Osmosis is passive transport, so it uses no energy. Passive transport moves substances down (from high to low) their concentration gradient. Osmosis is the movement of water across a semipermeable membrane. So the correct definition is water moving down the concentration gradient (high to low) across a semipermeable membrane without energy.

Answer:

the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy