What will be the direction of movement of water , when solution X having water potential of 12 - bars and another solution Z to -8 bars is separated by a semipermeable membrane ?

Options

A. Z to X
B. X to Z
C. Both direction
D. There will be no movement

Answer

To determine the direction of water movement between two solutions separated by a semipermeable membrane, we need to analyze the water potentials of the solutions involved.

### Step-by-Step Solution:

1. **Identify Water Potentials**:
- Solution X has a water potential (Ψ) of -12 bars.
- Solution Z has a water potential (Ψ) of -8 bars.

2. **Understand Water Potential**:
- Water potential is a measure of the potential energy in water, and it determines the direction of water movement. Water moves from areas of higher water potential to areas of lower water potential.

3. **Compare Water Potentials**:
- In this case, -8 bars (Solution Z) is greater than -12 bars (Solution X).
- This means that Solution Z has a higher water potential compared to Solution X.

4. **Determine Direction of Water Movement**:
- Since water moves from higher water potential to lower water potential, water will move from Solution Z to Solution X.

5. **Conclusion**:
- The direction of water movement will be from Solution Z to Solution X.

### Final Answer:
The direction of movement of water will be from Solution Z to Solution X.

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