‘Osmosis is a special kind of diffusion’. Comment. Related: Short Answer Questions (1) : Matter In Our Surroundings?

Question

‘Osmosis is a special kind of diffusion’. Comment. Related:  Short Answer Questions (1) : Matter In Our Surroundings?

Answer

Osmosis is different from diffusion is clear from my answer
osmosis is a process in which the water molecules move from higher concentration to lower concentration through a semipermeable membrane examples of plasma membrane .

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Answer

Osmosis is the diffusion of water molecules only
osmosis : movement of water molecules from a region of high concentration to a region of low concentration through a semi permeable membrane till equilibrium is reached
diffusion :movement of molecules (solid, liquid or gas) from a region of high concentration to low concentration without a protein carrier aid. example oxygen and carbondioxide

Answer

See .. diffussion is the process by which any solid , liquid or gas moves from an area of high pressure to low pressure .. osmosi is the process by which liquids and only liquids pass through the SEMI PERMEABLE MEMBRANE .. If it is a n liquid that's moving from  high pressure to low pressure , then it is diffussion ..  but if it is a LIQUID AND IS MOVING THROUGH THE SEMI PERMEABLE MEMBRENE , then it is osmosis .. so for osmosis both these criteras must be fulfilled !!

Answer

Osmosis is a special kind of diffusion

Osmosis is indeed a special kind of diffusion. Diffusion is the process by which particles move from an area of higher concentration to an area of lower concentration. It is a passive process that occurs due to the random movement of particles. Osmosis, on the other hand, is a specific type of diffusion that involves the movement of water molecules across a semi-permeable membrane.

Explanation of osmosis

Osmosis occurs when there is a difference in the concentration of solute molecules on either side of a semi-permeable membrane. A semi-permeable membrane allows the passage of solvent molecules (in this case, water) but restricts the movement of solute molecules. This creates an imbalance in the concentration of water molecules, leading to osmosis.

Key factors in osmosis

There are three key factors that determine the direction and rate of osmosis:

1. Concentration gradient: Osmosis occurs from an area of lower solute concentration to an area of higher solute concentration. This is because water molecules tend to move from an area of higher concentration to dilute the solute concentration.

2. Semi-permeable membrane: The presence of a semi-permeable membrane is crucial for osmosis. It allows the movement of water molecules but prevents the movement of solute molecules.

3. Pressure difference: Osmosis can also be influenced by the pressure difference on either side of the membrane. If the pressure on one side is higher, it can oppose the movement of water molecules and affect the rate of osmosis.

Applications of osmosis

Osmosis plays a vital role in various biological processes and has numerous practical applications, including:

1. Biological systems: Osmosis is essential for maintaining the balance of fluids in living organisms. It regulates the movement of water across cell membranes and helps in maintaining cell turgidity.

2. Reverse osmosis: Reverse osmosis is a water purification process that utilizes osmosis to remove impurities. It involves applying external pressure to overcome the osmotic pressure and force water through a semi-permeable membrane, leaving behind contaminants.

3. Food preservation: Osmosis is used in processes like brining and pickling to preserve food. The high salt or sugar concentration draws water out of the food, inhibiting the growth of bacteria and extending its shelf life.

Conclusion

In conclusion, osmosis is a special type of diffusion that involves the movement of water molecules across a semi-permeable membrane. It occurs due to the difference in solute concentration on either side of the membrane and is influenced by factors such as concentration gradient and pressure difference. Osmosis plays a crucial role in biological systems and has practical applications in water purification and food preservation.

Answer

Osmosis is different from diffusion

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