The influence of gravity on plant organs can be removed by rotating the plant in

Options

A. Auxanometer
B. Potometer
C. Respirometer
D. Clinostat.

Answer

To solve the question regarding the influence of gravity on plant organs and how it can be removed by rotating the plant, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks how the influence of gravity on plant organs can be negated by rotating the plant. This indicates that we are looking for a device or method that allows for the study of plant growth without the effects of gravity.

2. **Analyzing the Options**:
- **Option A: Oxanometer**: This device measures the increase in growth in plants. However, it does not specifically address the influence of gravity. Therefore, this option is incorrect.
- **Option B: Potometer**: This instrument measures the rate of water uptake by plants. It is not related to the effects of gravity on plant growth, making this option incorrect as well.
- **Option C: Respirometer**: This device measures the respiration rate of living organisms by analyzing the exchange of gases. It does not relate to gravity's influence on plant organs, so this option is also incorrect.
- **Option D: Clinostat**: This device is specifically designed to rotate plant samples to negate the effects of gravity on their growth. It allows researchers to study plant growth and development in a gravity-free environment.

3. **Conclusion**: After evaluating all the options, the correct answer is the **Clinostat**. This device effectively removes the influence of gravity on plant organs by rotating them.

### Final Answer:
The influence of gravity on plant organs can be removed by rotating the plant in a **Clinostat**.

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