In anaerobic condition, value of RQ will be

Options

A. 1
B. 2
C. infinity
D. 0

Answer

To determine the value of RQ (Respiratory Quotient) in anaerobic conditions, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Anaerobic Conditions**:
- Anaerobic conditions refer to environments where oxygen is absent. In such conditions, organisms rely on fermentation to break down food.

2. **Identify the Products of Anaerobic Respiration**:
- In the absence of oxygen, glucose is typically broken down into either lactic acid (in animals) or ethanol and carbon dioxide (in yeast and some plants).

3. **Define RQ**:
- The Respiratory Quotient (RQ) 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:
\[ RQ = \frac{CO2 \text{ evolved}}{O2 \text{ consumed}} \]

4. **Analyze RQ in Anaerobic Conditions**:
- In anaerobic respiration, since oxygen is not consumed (O2 = 0), the denominator in the RQ formula becomes zero.
- This leads to the situation where RQ becomes:
\[ RQ = \frac{CO2 \text{ evolved}}{0} = \infty \]

5. **Conclusion**:
- Therefore, in anaerobic conditions, the value of RQ is infinity.

### Final Answer:
- The value of RQ in anaerobic conditions is **infinity**.

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