RQ of maturing fatty seed is

Options

A. 1
B. `lt1`
C. `gt1`
D. 0

Answer

To determine the RQ (Respiratory Quotient) of maturing fatty seeds, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of RQ**:
RQ is defined as the ratio of the volume of carbon dioxide (CO2) produced to the volume of oxygen (O2) consumed during respiration. It is expressed as:
\[ RQ = \frac{\text{Volume of CO2 produced}}{\text{Volume of O2 consumed}} \]

2. **Identify the Substrate Used in Maturing Fatty Seeds**:
Maturing fatty seeds primarily utilize fats for respiration. However, these fats are derived from carbohydrates during the seed's development.

3. **Determine the RQ Value for Different Substrates**:
- For carbohydrates, the RQ is typically 1, as the amount of CO2 produced equals the amount of O2 consumed.
- For fats, the RQ is generally less than 1 because fats require more oxygen to oxidize compared to the amount of CO2 produced.

4. **Consider the Transition from Carbohydrates to Fats**:
In the case of maturing fatty seeds, the fats are formed from carbohydrates. When carbohydrates are metabolized to form fats, the overall RQ can be influenced by this process.

5. **Evaluate the Given Options**:
- Option 1: RQ = 1 (This is incorrect as it applies to carbohydrates).
- Option 2: RQ > 1 (This is the correct answer because the fats formed from carbohydrates lead to a higher RQ).
- Option 3: RQ < 1 (This is incorrect as it applies to the direct metabolism of fats).
- Option 4: RQ = 0 (This is incorrect as it does not apply to any typical respiratory process).

6. **Conclusion**:
Based on the analysis, the RQ of maturing fatty seeds is greater than 1, making option 2 the correct choice.

### Final Answer:
The RQ of maturing fatty seeds is **greater than 1** (Option 2).

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