What is Osmosis _ It’s Meaning and Definition Diffusion of a solvent (usually water molecules).

What is Osmosis _ It’s Meaning and Definition Diffusion of a solvent (usually water molecules).

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Osmosis is the movement of a solvent (usually water molecules) across a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration. This process continues until equilibrium is reached.

Definition of Osmosis

Osmosis is the diffusion of a solvent, typically water, through a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Key Points About Osmosis:

• Occurs through a semipermeable membrane (allows only certain molecules to pass).
• Moves solvent molecules (e.g., water), not solutes.
• Happens due to a concentration gradient (difference in solute concentration).
• Aims to achieve equilibrium between both sides of the membrane.

Types of Osmosis:

1. Endosmosis – Water moves into the cell when placed in a hypotonic solution.
2. Exosmosis – Water moves out of the cell when placed in a hypertonic solution.

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