Aerobic respiration is performed by :

Options

A. glycosomes
B. mitochondria
C. lysosomes
D. chloroplast

Explanation

### Step-by-Step Solution:

1. **Understanding Aerobic Respiration**:
- Aerobic respiration is a biological process that occurs in the presence of oxygen. It involves the breakdown of glucose to produce energy in the form of ATP (adenosine triphosphate).

2. **Identifying the Organelles**:
- The question lists several organelles: glycosome, mitochondria, lysosome, and chloroplast. We need to determine which of these is primarily responsible for aerobic respiration.

3. **Analyzing Each Organelle**:
- **Glycosome**: This organelle is involved in glycolysis, which is the first step in the breakdown of glucose. However, it does not perform aerobic respiration itself.
- **Lysosome**: This organelle contains digestive enzymes and is involved in breaking down waste materials and cellular debris. It does not play a role in aerobic respiration.
- **Chloroplast**: This organelle is found in plant cells and is responsible for photosynthesis, converting light energy into chemical energy. It does not perform aerobic respiration.
- **Mitochondria**: This organelle is known as the powerhouse of the cell. It is where aerobic respiration takes place, as it oxidizes pyruvate and other products to produce ATP in the presence of oxygen.

4. **Conclusion**:
- The only organelle that performs aerobic respiration is the mitochondria. Therefore, the correct answer to the question is **mitochondria**.

### Final Answer:
Aerobic respiration is performed by **mitochondria**.

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