Name the process by which energy is released from the digestive food.

Options

A. Breathing
B. Respiration
C. Ingestion
D. Excretion

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question:** The question asks for the name of the process through which energy is released from the food that has been digested.

2. **Identifying the Components of Food:** Digested food consists of various nutrients such as carbohydrates, proteins, and fats. These nutrients are broken down during digestion.

3. **Recognizing the Process:** The process that releases energy from these digested nutrients is called **respiration**.

4. **Defining Respiration:** Respiration is defined as the breakdown of complex compounds (like carbohydrates) through oxidation. This breakdown occurs within the cells and leads to the release of a considerable amount of energy.

5. **Understanding Respiratory Substrates:** The compounds that are oxidized during respiration to release energy are known as **respiratory substrates**. While carbohydrates are the most common substrates, proteins, fats, and even organic acids can also serve as substrates under certain conditions.

6. **Conclusion:** Therefore, the process by which energy is released from the digestive food is called **respiration**. This energy is essential for various cellular processes and body functions.

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