Which reaction takes place during respiration?

Explanation

### Step-by-Step Solution:

1. **Understanding Respiration**:
- Respiration refers to the biochemical process through which cells convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.

2. **Identifying the Main Reaction**:
- The primary reaction that occurs during cellular respiration involves the breakdown of glucose in the presence of oxygen.

3. **Writing the Chemical Equation**:
- The chemical equation for this reaction can be represented as follows:
\[ C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + ATP \]
- Here, \(C_6H_{12}O_6\) represents glucose, \(O_2\) is oxygen, \(CO_2\) is carbon dioxide, \(H_2O\) is water, and ATP is the energy currency of the cell.

4. **Products of the Reaction**:
- The products of this reaction are carbon dioxide, water, and ATP, which is used by the cell for various energy-requiring processes.

5. **Conclusion**:
- Therefore, the reaction that takes place during respiration is the conversion of glucose and oxygen into carbon dioxide, water, and ATP.