What is the fate of pyruvic acid under anaerobic conditions in our body?

Options

A. It gets converted into methyl alcohol
B. It gets converted into acetyl CoA
C. It gets converted into lactic acid
D. It gets converted into glycogen

Answer

### Step-by-Step Solution:

1. **Understanding Cellular Respiration**: Cellular respiration can occur in two main ways: aerobic respiration and anaerobic respiration. Aerobic respiration requires oxygen, while anaerobic respiration occurs in the absence of oxygen.

2. **Glycolysis**: In both aerobic and anaerobic conditions, glucose is first broken down through a process called glycolysis. This process results in the formation of pyruvic acid as the end product.

3. **Fate of Pyruvic Acid in Aerobic Conditions**: Under aerobic conditions, pyruvic acid is converted into acetyl coenzyme A (acetyl-CoA), which then enters the mitochondria to participate in the Krebs cycle and the electron transport chain, ultimately leading to ATP production.

4. **Fate of Pyruvic Acid in Anaerobic Conditions**: In contrast, under anaerobic conditions, pyruvic acid cannot be converted into acetyl-CoA due to the lack of oxygen. Instead, it undergoes fermentation.

5. **Conversion to Lactic Acid**: In human cells, pyruvic acid is converted into lactic acid during anaerobic respiration. This process allows for the regeneration of NAD+, which is necessary for glycolysis to continue producing ATP in the absence of oxygen.

6. **Conclusion**: Therefore, the fate of pyruvic acid under anaerobic conditions in our body is that it gets converted into lactic acid.

### Final Answer:
The correct answer is that pyruvic acid is converted into lactic acid under anaerobic conditions in our body.

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