Energy liberated during respiration is stored as

Options

A. ATP
B. ADP
C. FAD
D. NADP.

Answer

### Step-by-Step Solution:

1. **Understanding Respiration**:
- Respiration is a biochemical process where food molecules (usually glucose) are broken down in the presence of oxygen to produce energy. This process results in the formation of carbon dioxide and water as byproducts.

2. **Energy Release**:
- During respiration, energy is released when chemical bonds in food molecules are broken. This energy is essential for various cellular activities.

3. **Energy Storage**:
- The energy released during respiration is not used directly by cells. Instead, it is stored in a usable form. The primary molecule that stores this energy is ATP (adenosine triphosphate).

4. **Understanding ATP**:
- ATP is often referred to as the energy currency of the cell. It consists of an adenosine molecule bonded to three phosphate groups. When one of the phosphate groups is removed (through hydrolysis), energy is released for cellular processes.

5. **Conclusion**:
- Therefore, the energy liberated during respiration is stored as ATP.

### Final Answer:
The energy liberated during respiration is stored as **ATP (adenosine triphosphate)**.

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