Question

difference between diffusion Osmosis in long

Answer 1

Diffusion = The movement of solvent from higher concentration to lower concentration without semi permeable membrane......
ex : The Diffusion of smell of perfume in a room......

Osmosis = The movement of solvent from higher concentration to lower concentration with a semi permeable membrane.......
Ex : The water filled in a seed when it is dipped in water........

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Answer 2

Both diffusion and osmosis are passive transport processes, which means they do not require any input of extra energy to occur. In both diffusion and osmosis, particles move from an area of higher concentration to one of lower concentration.

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. This can be confusing to understand because while the solvent particles are moving from higher to lower solvent concentration across the membrane, they are moving from lower to higher solute concentration (from a more dilute solution to a region of more concentrated solution). This occurs naturally because the system seeks balance or equilibrium. If the solute particles can't cross a barrier, the only way to equalize concentration on both sides of the membrane is for the solvent particles to move in. You can consider osmosis to be a special case of diffusion in which diffusion occurs across a semipermeable membrane and only the water or other solvent moves.

When people discuss osmosis in biology, it always refers to the movement of water.

In chemistry, it's possible for other solvents to be involved.

Examples of Diffusion: perfume filling a whole room, a drop of food coloring spreading out to uniformly color a cup of water, movement of small molecules across a cell membrane

Examples of Osmosis: red blood cells swelling up when exposed to fresh water, plant root hairs uptake water via osmosis