A : RQ of maturing fatty seeds is `gt 1`.
R : Fats are preferred energy fuels.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
C. If Assertion is true statement but Reason is false, then mark (3)
D. If both Assertion and Reason are false statements, then mark (4)

Answer

To solve the question regarding the assertion and reason related to the respiratory quotient (RQ) of maturing fatty seeds, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Assertion (A)**: The assertion states that "RQ of maturing fatty seeds is greater than 1".
- RQ (Respiratory Quotient) is defined as the ratio of the volume of carbon dioxide (CO2) produced to the volume of oxygen (O2) consumed during respiration.
- For fatty seeds, during the process of respiration, the breakdown of fats results in more CO2 being produced compared to the O2 consumed, leading to an RQ value greater than 1.

2. **Evaluate the Reason (R)**: The reason states that "Fats are preferred energy fuels".
- While fats serve as a significant energy source, they are not the preferred immediate energy fuel. Carbohydrates are generally considered the preferred energy source because they can be metabolized quickly for immediate energy needs.
- Therefore, while fats are important for energy storage, they are not the first choice for energy utilization.

3. **Determine the Truth Value of A and R**:
- The assertion (A) is true because the RQ of maturing fatty seeds is indeed greater than 1 due to the higher production of CO2 from fat metabolism.
- The reason (R) is false because fats are not the preferred energy fuel; carbohydrates are preferred for immediate energy.

4. **Conclusion**: Since the assertion is true and the reason is false, the correct option is to mark 3 (Assertion is true, but Reason is false).

### Final Answer:
The correct answer is option 3: "Assertion is true, but Reason is false."

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