Which organelle perform aerobic respiration in cell?

Answer

**Step-by-Step Solution:**

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

2. **Identifying the Stages of Respiration**: There are three main stages of aerobic respiration:
- **Glycolysis**: This is the first stage that occurs in the cytoplasm (cytosol) of the cell. It involves the breakdown of glucose into pyruvate, producing a small amount of ATP.
- **Krebs Cycle (Citric Acid Cycle)**: The second stage occurs in the mitochondria, specifically in the matrix. It processes the pyruvate produced in glycolysis and generates electron carriers (NADH and FADH2) along with ATP.
- **Electron Transport Chain (ETC) and Oxidative Phosphorylation**: The final stage occurs across the inner membrane of the mitochondria. Here, the electron carriers produced in the Krebs cycle donate electrons to the chain, and oxygen is used to produce ATP through oxidative phosphorylation.

3. **Identifying the Organelle**: The organelle responsible for aerobic respiration is the mitochondria. It is often referred to as the "powerhouse of the cell" because it is where the majority of ATP is produced during aerobic respiration.

4. **Conclusion**: Therefore, the organelle that performs aerobic respiration in the cell is the mitochondria.

---