In the presence of dilute salt solution, rate of respiration in a respiring tissue

Options

A. Increases
B. Decreases
C. Remains constant
D. None of the above

Answer

To solve the question regarding the effect of a dilute salt solution on the rate of respiration in respiring tissue, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Respiration in Tissues:**
- Respiration is a biochemical process where cells convert nutrients into energy. In plants, this process is crucial for growth and development.

2. **Effect of Dilute Salt Solution:**
- When plant tissues are placed in a dilute salt solution, it can lead to an increase in the osmotic potential of the surrounding solution. This means that the plant cells may absorb more water and minerals.

3. **Increased Rate of Respiration:**
- The absorption of minerals and water can stimulate metabolic activities within the cells, leading to an increase in the rate of respiration. This is particularly true when roots are involved, as they actively take up minerals from the soil.

4. **Evaluating the Options:**
- **Option 1: Increases** - This is correct because the rate of respiration does increase due to enhanced metabolic activity.
- **Option 2: Decreases** - This is incorrect; the rate does not decrease in the presence of a dilute salt solution.
- **Option 3: Remains Constant** - This is also incorrect; the rate does not remain constant.
- **Option 4: None of the above** - This is incorrect as well since the first option is valid.

5. **Conclusion:**
- The correct answer is that the rate of respiration in a respiring tissue increases in the presence of a dilute salt solution.

### Final Answer:
The rate of respiration in a respiring tissue increases in the presence of a dilute salt solution.

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