Select an incorrect statement for diffusion

Options

A. The molecules diffuse from a region of lower concentration tp higher concentration
B. No energy expenditure takes place.
C. In diffusion, molecules move in a random fashion
D. Diffusion is not dependent on a living system

Answer

To solve the question "Select an incorrect statement for diffusion," we will analyze each of the provided statements about diffusion to determine which one is incorrect.

### Step-by-Step Solution:

1. **Understanding Diffusion**:
- Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration until equilibrium is reached.

2. **Analyzing Each Statement**:
- **Statement 1**: "The molecules diffuse from a region of lower concentration to lower concentration."
- This statement is incorrect because diffusion occurs from higher concentration to lower concentration, not from lower to lower.

- **Statement 2**: "No energy expenditure takes place."
- This statement is correct. Diffusion is a passive process and does not require energy.

- **Statement 3**: "Diffusion molecules move in a random fashion."
- This statement is also correct. Molecules in diffusion move randomly due to their kinetic energy.

- **Statement 4**: "Diffusion is not dependent on a living system; it is a slow process."
- This statement is correct. Diffusion can occur in both living and non-living systems and can be slow depending on the conditions.

3. **Conclusion**:
- The incorrect statement regarding diffusion is **Statement 1**: "The molecules diffuse from a region of lower concentration to lower concentration."

### Final Answer:
The incorrect statement for diffusion is: **"The molecules diffuse from a region of lower concentration to lower concentration."**

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