Movement of water molecules from higher concentration to lower concentration through semi permeable membrane is called _____

Options

A. osmosis
B. diffusion
C. transpiration
D. Both (b) and (c)

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Process**: The question asks about the movement of water molecules. This movement occurs when there is a difference in concentration of water molecules on either side of a membrane.

2. **Identifying the Type of Membrane**: The question specifies a "semi-permeable membrane." This type of membrane allows certain molecules, like water, to pass through while blocking others.

3. **Direction of Movement**: Water molecules move from an area of higher concentration (where there are more water molecules) to an area of lower concentration (where there are fewer water molecules). This movement continues until equilibrium is reached.

4. **Naming the Process**: The specific term for this movement of water molecules through a semi-permeable membrane is called "osmosis."

5. **Conclusion**: Therefore, the answer to the question is "osmosis."

**Final Answer**: Movement of water molecules from higher concentration to lower concentration through a semi-permeable membrane is called **osmosis**.

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