Select the INCORRECTLY matched pair.

Options

A. End products of alcoholic fermentation - Ethanol `+CO_2`
B. End products of lactic acid fermentation - Lactic acid + `CO_2`
C. RQ of lipids - Less than one
D. RQ of carbohydrates - One

Answer

To solve the question of selecting the incorrectly matched pair, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Option A: Products of Alcoholic Fermentation - Ethanol + CO2**
- In alcoholic fermentation, glucose is converted into pyruvic acid through glycolysis. Then, in the absence of oxygen (anaerobic conditions), pyruvic acid is converted into ethanol and carbon dioxide (CO2) by yeast.
- **Conclusion**: This match is correct.

2. **Option B: Products of Lactic Acid Fermentation - Lactic Acid + CO2**
- In lactic acid fermentation, pyruvic acid is converted into lactic acid. This process occurs in muscle cells and does not produce carbon dioxide (CO2).
- **Conclusion**: This match is incorrect because lactic acid fermentation does not produce CO2.

3. **Option C: RQ of Lipids is less than 1**
- The Respiratory Quotient (RQ) is the ratio of CO2 produced to O2 consumed. For lipids, the RQ value is indeed less than 1, as fats require more oxygen for oxidation compared to the amount of CO2 produced.
- **Conclusion**: This match is correct.

4. **Option D: RQ of Carbohydrates is equal to 1**
- The RQ for carbohydrates is equal to 1 because the amount of CO2 produced is equal to the amount of O2 consumed during the respiration of carbohydrates.
- **Conclusion**: This match is correct.

### Final Conclusion:
The incorrectly matched pair is **Option B**: Products of lactic acid fermentation - lactic acid + CO2, because lactic acid fermentation does not produce CO2.