What is the difference between diffusion and osmosis?

Question

Answer

Osmosis: in this process substance move from higher concentration to lower concentration through selectively permeable membrane......whileIn Diffusion substance move from higher concentration to lower concentration ....

Answer

Diffution- when any thing spreads out without seeing high to low concentration whereas osmosis the subtance spead for high concentration to low concentration

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Diffusion is movement of gases from high concentration area to low concentration area whereas osmosis is movement of water from high concentration area to low concentration area

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DIFFUSION it is the rapid /spontaneous movement of SUBSTANCES from the region of high concentration to the low concentration until it is uniformly distributed through a semi permeable membrane . OSMOSIS. it is the spontaneous/rapid movement of WATER from the region of high concentration to the region of low concentration until it is uniformly distributed through the semi permeable membrane.

Answer

Introduction

Diffusion and osmosis are two important processes that occur in biological systems. Both processes involve the movement of molecules from an area of higher concentration to an area of lower concentration. However, there are key differences between diffusion and osmosis in terms of the substances involved and the direction of movement.

Diffusion

Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. It occurs in both liquid and gas phases and is driven by the random motion of molecules. Diffusion plays a crucial role in various biological processes, such as gas exchange in the lungs and the movement of substances across cell membranes.

Osmosis

Osmosis is a specific type of diffusion that involves the movement of water molecules across a selectively permeable membrane. A selectively permeable membrane allows certain substances, such as water, to pass through while preventing the passage of others. In osmosis, water molecules move from an area of lower solute concentration (higher water concentration) to an area of higher solute concentration (lower water concentration) through the membrane.

Key Differences

1. Substances Involved:
- Diffusion can occur with any type of molecule, including gases, liquids, and solids, as long as there is a concentration gradient.
- Osmosis specifically refers to the movement of water molecules across a selectively permeable membrane.

2. Direction of Movement:
- In diffusion, molecules move from areas of higher concentration to areas of lower concentration until equilibrium is reached.
- In osmosis, water molecules move from areas of lower solute concentration to areas of higher solute concentration until equilibrium is achieved.

3. Role of Membrane:
- Diffusion can occur through any medium, including air, liquid, or solid, without the need for a membrane.
- Osmosis requires a selectively permeable membrane that allows the passage of water molecules but restricts the movement of solute molecules.

4. Driving Force:
- Diffusion is driven by the random motion of molecules and the concentration gradient.
- Osmosis is driven by the difference in solute concentration across the membrane, which creates an imbalance in water concentration.

Conclusion

In summary, diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration, while osmosis specifically refers to the movement of water molecules across a selectively permeable membrane. Diffusion occurs with various substances and does not require a membrane, while osmosis involves only water molecules and requires a selectively permeable membrane. Understanding the differences between these two processes is crucial for comprehending various biological phenomena and the functioning of living organisms.

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