Assersion; Respiration is an endogenous reaction.
Reason;Anaeroboic respiration releases more energy than aerobic respiration.

Options

A. If both As and R are correct and R is correct explanation of As
B. If both As and R are correct but R is not correct explanation of As
C. If As is correct, R is wrong
D. If both As and R are wrong.

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion**: The assertion states that "Respiration is an endogenous reaction." To evaluate this, we need to define what endogenous reactions are. Endogenous reactions are those that occur due to internal factors within an organism.

2. **Evaluating the Assertion**: In the case of respiration, it involves the intake of oxygen and nutrients (like carbohydrates) from the external environment. Since these components are not produced internally but are sourced from outside, respiration cannot be classified as an endogenous reaction. Therefore, the assertion is incorrect.

3. **Understanding the Reason**: The reason provided states that "Anaerobic respiration releases more energy than aerobic respiration." To assess this, we need to compare the energy yield of both types of respiration.

4. **Comparing Energy Production**:
- **Anaerobic Respiration**: This process typically yields 2 ATP molecules per glucose molecule.
- **Aerobic Respiration**: This process is much more efficient and yields approximately 36 ATP molecules per glucose molecule.

5. **Evaluating the Reason**: Since aerobic respiration produces significantly more energy (ATP) than anaerobic respiration, the reason provided is also incorrect.

6. **Conclusion**: Both the assertion and the reason are incorrect. Therefore, the correct answer to the question is that both A (Assertion) and R (Reason) are wrong.

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