R.Q is more than one in case of

Options

A. Fat
B. Glucose
C. Organic acid
D. Protein.

Answer

To determine when the respiratory quotient (RQ) is more than one, we need to understand what RQ represents and how it varies with different substrates.

### Step-by-Step Solution:

1. **Understanding RQ**:
- RQ, or respiratory quotient, is defined as the ratio of the volume of carbon dioxide (CO2) produced to the volume of oxygen (O2) consumed during respiration.
- The formula for RQ is:
\[ RQ = \frac{\text{Volume of CO2 evolved}}{\text{Volume of O2 consumed}} \]

2. **Identifying Substrates**:
- Different substrates (carbohydrates, fats, proteins, and organic acids) yield different RQ values when metabolized.
- Common RQ values for these substrates are:
- Carbohydrates: RQ = 1.0
- Fats: RQ = 0.7
- Proteins: RQ = 0.8
- Organic Acids: RQ > 1.0

3. **Analyzing the Options**:
- Given the options: fats, glucose, organic acid, and protein, we need to identify which one has an RQ greater than 1.
- From the RQ values:
- Fats have an RQ of 0.7 (less than 1).
- Glucose (a carbohydrate) has an RQ of 1.0 (equal to 1).
- Proteins have an RQ of 0.8 (less than 1).
- Organic acids have an RQ greater than 1.

4. **Conclusion**:
- The only substrate from the options provided that has an RQ greater than 1 is **organic acids**.

### Final Answer:
RQ is more than one in the case of **organic acids**.

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