Question

what is a key difference between osmosis and diffusion? osmosis requires a transport molecule, while diffusion does not. osmosis involves the movement of any molecules, while diffusion involves only the movement of water. osmosis is a form of active transport, while diffusion is a form of passive transport. osmosis involves only the movement of water, while diffusion involves the movement of any molecules.

Explanation:

• Osmosis is the movement of water molecules across a semi - permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
• Diffusion is the movement of any molecules (gas, liquid, or solid) from an area of higher concentration to an area of lower concentration.
• Osmosis is a type of diffusion but specifically for water.
• Both osmosis and diffusion are passive transport (no energy input required), and neither requires a transport molecule in the simple forms (facilitated diffusion may involve transport proteins, but simple diffusion and osmosis (through the lipid bilayer) do not).

Answer:

Osmosis involves only the movement of water, while diffusion involves the movement of any molecules.