Question

what is diffusion and osmosis​

Answer 1

Diffusion is the movement of particles from the region of their higher concentrations to lower concentrations

while osmosis refers to the movement of water molecules from its higher conc to lower conc through a SPM

if you are in XII class : osmosis : "" higher water potential to lower water potent ""

Answer 2

Diffusion and osmosis:

Diffusion is a spontaneous movement of particles from an area of high concentration to an area of low concentration. Osmosis is the spontaneous net movement of water across a semipermeable membrane from a region of low solute concentration to a more concentrated solution, up a concentration gradient.

Diffusion:

• Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and gases because their particles move randomly from place to place. Diffusion is an important process for living things; it is how substances move in and out of cells.
• Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. For instance, a gas diffuses very quickly in another gas. An example of this is the way the noxious smell of ammonia gas spreads in air.

Osmosis:

• Movement of a solvent (such as water) through a semipermeable membrane into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane.
• Osmosis is how plants are able to absorb water from soil. The roots of the plant have a higher solute concentration than the surrounding soil, so water flows into the roots. In plants, guard cells are also affected by osmosis. Osmosis can have adverse effects on animals such as fish.