RQ for carbohydrate is

Options

A. `1`
B. `0.5`
C. `2`
D. `0.05`

Answer

To find the Respiratory Quotient (RQ) for carbohydrates, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of 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.

2. **Identify the Formula for RQ**:
- The formula for RQ is:
\[ RQ = \frac{\text{Volume of CO2 evolved}}{\text{Volume of O2 consumed}} \]

3. **Consider the Example of Carbohydrate**:
- For carbohydrates, glucose (C6H12O6) is typically used as an example. The complete aerobic respiration of glucose can be represented by the following equation:
\[ C6H12O6 + 6O2 \rightarrow 6CO2 + 6H2O \]

4. **Analyze the Reaction**:
- From the equation, we can see that for every 1 molecule of glucose that is consumed:
- 6 molecules of CO2 are produced.
- 6 molecules of O2 are consumed.

5. **Calculate the RQ**:
- Using the values from the reaction:
\[ RQ = \frac{6 \text{ CO2}}{6 \text{ O2}} = 1 \]

6. **Conclusion**:
- Therefore, the RQ for carbohydrates is 1.

### Final Answer:
- The RQ for carbohydrates is **1**.

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