Food

Options

A. gives us energy
B. helps us in growth
C. repairs body parts
D. all of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Role of Food**: Food is essential for our bodies as it provides the necessary nutrients and energy needed for daily activities.

2. **Energy Production**: When we consume food, our body converts it into energy, primarily in the form of ATP (adenosine triphosphate), which is crucial for all bodily functions.

3. **Growth and Development**: Food contributes to the growth and development of our bodies. This includes physical growth, such as increasing height, and cellular growth, which is vital for the overall health of our tissues and organs.

4. **Defense Mechanism**: Food plays a significant role in building our immune system. It helps in the production of white blood cells (WBCs), which are essential for fighting off infections and foreign organisms that enter our body.

5. **Healing and Recovery**: Food is also important for healing wounds and injuries. The nutrients from food aid in the recovery process, helping to repair damaged tissues.

6. **Conclusion**: Based on the above points, we can conclude that food provides energy, supports growth and development, and aids in our body's defense mechanisms. Therefore, all the mentioned roles of food are correct.

**Final Answer**: All three roles of food (energy, growth and development, and defense) are correct.

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