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Osmosis & Water Potential Video Lecture - NEET

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FAQs on Osmosis & Water Potential Video Lecture - NEET

1. What is osmosis and how does it relate to water potential?

Ans. Osmosis is the movement of water molecules across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration. Water potential, on the other hand, is the measure of the potential energy of water molecules to move from one place to another. Osmosis and water potential are closely related as osmosis occurs in response to the difference in water potential between two regions.

2. How does osmosis affect plant cells?

Ans. Osmosis plays a crucial role in plant cells. When a plant cell is placed in a hypertonic solution (higher solute concentration outside the cell), water moves out of the cell, causing it to shrink and become flaccid. In contrast, in a hypotonic solution (lower solute concentration outside the cell), water moves into the cell, causing it to swell and become turgid. This turgidity is essential for plant support and maintaining cell shape.

3. Can osmosis be reversed?

Ans. Yes, osmosis can be reversed through a process called reverse osmosis. Reverse osmosis involves applying pressure to force water molecules through a semi-permeable membrane from an area of higher solute concentration to an area of lower solute concentration. This process is commonly used in water purification systems to remove impurities and obtain pure water.

4. How does temperature affect osmosis?

Ans. Temperature has an impact on the rate of osmosis. Generally, an increase in temperature leads to an increase in the rate of osmosis. This is because higher temperatures increase the kinetic energy of water molecules, causing them to move more rapidly. As a result, osmosis occurs at a faster rate. However, extremely high temperatures can denature proteins and disrupt the integrity of cell membranes, affecting osmosis.

5. What factors affect water potential?

Ans. Several factors influence water potential. The main factors include solute concentration, pressure, and gravity. Higher solute concentration decreases water potential, while increased pressure and gravity can increase or decrease water potential depending on the context. Additionally, the presence of osmotic pressure, which is the pressure required to stop osmosis, also affects water potential.

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Osmosis & Water Potential for NEET2024 is part of NEET preparation. The notes and questions for Osmosis & Water Potential have been prepared according to the NEET exam syllabus. Information about Osmosis & Water Potential covers all important topics for NEET2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Osmosis & Water Potential.

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