In osmosis, there is movement of

Options

A. Solvent molecules move from higher concentration to lower concentration
B. Solvent molecules move from lower to higher concentration
C. Solute molecules move from higher to lower concentration
D. Solute molecules move from lower to higher concentration

Answer

**Step-by-Step Solution:**

1. **Understanding Osmosis**: Osmosis is a specific type of diffusion that involves the movement of solvent molecules. It occurs when there is a semi-permeable membrane separating two solutions of different concentrations.

2. **Identifying Concentration Gradient**: In osmosis, the movement of solvent molecules occurs from a region of lower solute concentration (more dilute solution) to a region of higher solute concentration (more concentrated solution). This means that the solvent moves towards the area where there are more solute particles.

3. **Role of Semi-Permeable Membrane**: The semi-permeable membrane allows only solvent molecules to pass through while preventing solute particles from doing so. This selective permeability is crucial for the process of osmosis.

4. **Visualizing the Process**: To visualize this, imagine a beaker divided by a semi-permeable membrane. On one side (let's call it Solution A), there is a dilute solution (lower concentration of solute), and on the other side (Solution B), there is a concentrated solution (higher concentration of solute). The solvent molecules will move from Solution A to Solution B.

5. **Conclusion**: Therefore, in osmosis, there is a movement of solvent molecules from a region of lower concentration (Solution A) to a region of higher concentration (Solution B) through a semi-permeable membrane.

**Final Answer**: In osmosis, there is movement of solvent molecules from a region of lower concentration to a region of higher concentration through a semi-permeable membrane.

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