Removal of micronucleus in Paramecium impairs

Options

A. Locomotion
B. Osmoregulation
C. Reproduction
D. Excretion.

Answer

To solve the question regarding the impact of removing the micronucleus in Paramecium, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Paramecium**:
- Paramecium is a unicellular organism that contains two types of nuclei: the macronucleus and the micronucleus.

2. **Identify the Functions of Each Nucleus**:
- The **macronucleus** is larger and is primarily involved in non-reproductive functions such as cell metabolism and protein synthesis.
- The **micronucleus** is smaller and is primarily associated with reproductive functions.

3. **Analyze the Impact of Removing the Micronucleus**:
- Since the micronucleus is crucial for reproduction, its removal would directly impair the reproductive capabilities of Paramecium.

4. **Evaluate the Options Given**:
- Option 1: Locomotion - Not primarily affected by the micronucleus.
- Option 2: Osmoregulation - Not primarily affected by the micronucleus.
- Option 3: Reproduction - This is the correct answer, as the micronucleus is essential for reproductive functions.
- Option 4: Excretion - Not primarily affected by the micronucleus.

5. **Conclude the Answer**:
- The removal of the micronucleus in Paramecium impairs reproduction.

### Final Answer:
The removal of the micronucleus in Paramecium impairs **reproduction**.