The energy released in anaerobic respiration is much less than aerobic respiration. Give reason.

Explanation

**Step-by-Step Solution:**

1. **Definition of Anaerobic Respiration**: Anaerobic respiration occurs in the absence of oxygen. This is a crucial point because the presence of oxygen significantly influences the energy yield from the process.

2. **Incomplete Oxidation of Glucose**: In anaerobic respiration, glucose is not completely oxidized. Instead of being fully broken down into carbon dioxide and water, it is only partially oxidized. This incomplete breakdown results in a lower energy yield.

3. **Energy Yield from Glycolysis**: During anaerobic respiration, the process of glycolysis occurs, which produces only 2 ATP molecules per glucose molecule. Glycolysis is the first step in both aerobic and anaerobic respiration, but it is the only step in anaerobic respiration.

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