Smallest rotatory biomachine found in aerobes is

Options

A. `F_(0)-F_(1)` particle
B. Complex - I
C. Complex - II
D. UQ

Answer

To answer the question about the smallest rotatory biomachine found in aerobes, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the smallest rotatory biomachine in aerobes. We need to identify which of the given options fits this description.

2. **Analyzing the Options**:
- **Option A: F0, F1 Particle**: This is also known as oxysome. It is found in the inner membrane of mitochondria, specifically in the cristae. The F0 part is responsible for the rotation and is involved in ATP synthesis.
- **Option B: Complex I**: This is the first component of the electron transport chain (ETC). It is a large enzyme complex, so it cannot be the smallest.
- **Option C: Complex II**: This is the second component of the ETC, also known as succinate reductase. It is also not the smallest.
- **Option D: UQ (Ubiquinone)**: This is a mobile carrier in the ETC, but it is not a rotatory biomachine.

3. **Identifying the Correct Answer**: Among the options, the F0, F1 particle is the smallest rotatory biomachine found in aerobes. It plays a crucial role in ATP production through oxidative phosphorylation.

4. **Conclusion**: Therefore, the correct answer to the question is **F0, F1 particle**.