In which of the following , R.Q will always be less than one ?

Options

A. Potato
B. Rice
C. Groundnut
D. More than one option is correct

Answer

To solve the question regarding which of the following has an R.Q (Respiratory Quotient) that will always be less than one, we will analyze the options provided: potato, rice, groundnut, and more than one option is correct.

### Step-by-Step Solution:

1. **Understand R.Q (Respiratory Quotient)**:
- R.Q is defined as the ratio of the volume of carbon dioxide produced to the volume of oxygen consumed during respiration.
- The formula for R.Q is:
\[ R.Q = \frac{\text{CO}_2 \text{ produced}}{\text{O}_2 \text{ consumed}} \]

2. **Identify the R.Q Values for Different Nutrients**:
- Carbohydrates (like starch) typically have an R.Q of 1.
- Fats have an R.Q value that is less than 1 (approximately 0.7).
- Proteins also have an R.Q value that is less than 1 (approximately 0.8).

3. **Analyze the Options**:
- **Potato**: Primarily composed of carbohydrates, so its R.Q is 1.
- **Rice**: Also primarily composed of carbohydrates, so its R.Q is 1.
- **Groundnut**: Contains a significant amount of fat, so its R.Q is less than 1.
- **More than one option is correct**: This option suggests that there could be multiple correct answers.

4. **Conclusion**:
- The only option that will always have an R.Q less than 1 is **groundnut** because it is primarily composed of fats.
- Therefore, the correct answer is **groundnut**.

### Final Answer:
The R.Q will always be less than one in **groundnut**.

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