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Lactic acid fermentation does not produc...

Lactic acid fermentation does not produce

A

ATP

B

`CO_(2)" and "NADH`

C

`CO_(2)`

D

NADH

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Lactic Acid Fermentation**: Lactic acid fermentation is a metabolic process that occurs in the absence of oxygen (anaerobic conditions). It primarily involves the conversion of glucose into lactic acid. 2. **Identifying the Starting Material**: The process begins with pyruvate, which is a 3-carbon compound produced during glycolysis. 3. **Conversion Process**: In lactic acid fermentation, the 3-carbon pyruvate is converted into 3-carbon lactic acid. This conversion is facilitated by the enzyme lactate dehydrogenase. 4. **Role of NAD+ and NADH**: During this process, NADH (the reduced form of NAD+) is oxidized back to NAD+. This regeneration of NAD+ is crucial as it allows glycolysis to continue, producing ATP even in anaerobic conditions. 5. **Products of Lactic Acid Fermentation**: The main products of lactic acid fermentation are lactic acid and NAD+. Importantly, ATP is produced indirectly through glycolysis, while carbon dioxide (CO2) is not produced in this process. 6. **Comparison with Alcoholic Fermentation**: It's essential to note that CO2 is produced in alcoholic fermentation (not lactic acid fermentation), which is a key difference between the two processes. 7. **Conclusion**: Therefore, lactic acid fermentation does not produce CO2 and NADH. The correct answer to the question is that lactic acid fermentation does not produce CO2 and NADH. **Final Answer**: Lactic acid fermentation does not produce CO2 and NADH. ---
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{:("Column I","Column II"),("1. Glycolysis","(a) 38 ATP"),("2. Krebs cycle","(b) Pyruvic acid"),("3. Lactic acid fermentation","(c ) 30 ATP"),("4. Electron transport chain","(d) 2 ATP"),("5. Aerobic respiration","(e )" NADPH_(2)):}

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