Question

in what two ways osmosis is different from diffusion
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Answer 1

Answer:

Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.

Diffusion can occur in any mixture, including one which includes a semipermeable membrane, while osmosis always occurs across a semipermeable membrane.

One big difference between osmosis and diffusion is that both solvent and solute particles are free to move in diffusion, but when we talk about osmosis, only the solvent molecules (water molecules) cross the membrane. 

Answer 2

1) Osmosis needs a semipermeable membrane while diffusion does not.

2)Both the solvent and solute particles are free to move in diffusion but in osmosis only the solvent particles are free to move.