Name the four steps of oxidation in Krebs' cycle. (TCA)

Explanation

### Step-by-Step Solution

1. **Understanding the Krebs Cycle**: The Krebs cycle, also known as the Tricarboxylic Acid (TCA) cycle or Citric Acid cycle, is a crucial metabolic pathway that involves a series of chemical reactions used by all aerobic organisms to generate energy.

2. **Identifying the Steps of Oxidation**: In the Krebs cycle, there are four key steps that involve oxidation reactions. These steps specifically involve the conversion of substrates and the reduction of coenzymes.

3. **Step 1 - Conversion of Isocitrate to Alpha-Ketoglutarate**:
- **Reaction**: Isocitrate is oxidized to alpha-ketoglutarate.
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