Pyruvic acid, the key product of glycolysis can heve many matabolic fates. Under aerobic condition it forms

Options

A. lactic acid
B. `CO_(2)+H_(2)O`
C. acetyl `Co-A+CO_(2)`
D. ethanol `+CO_(2)`

Explanation

### Step-by-Step Solution:

1. **Understanding Glycolysis**: Glycolysis is the metabolic pathway that converts glucose into pyruvate. This process occurs in the cytoplasm of the cell and is the first step in cellular respiration.

2. **Formation of Pyruvic Acid**: During glycolysis, one molecule of glucose (6 carbons) is broken down into two molecules of pyruvic acid (3 carbons each). This process also produces a small amount of ATP and NADH.

3. **Aerobic Conditions**: Under aerobic conditions, where oxygen is present, pyruvic acid does not undergo fermentation. Instead, it is transported into the mitochondria for further processing.

4. **Oxidation of Pyruvic Acid**: In the mitochondria, pyruvic acid undergoes oxidative decarboxylation. This means that it loses a carboxyl group (which is released as carbon dioxide) and is oxidized to form acetyl coenzyme A (acetyl CoA).

5. **Citric Acid Cycle**: The acetyl CoA then enters the citric acid cycle (also known as the Krebs cycle or TCA cycle). During this cycle, acetyl CoA is further oxidized, leading to the production of carbon dioxide and water as end products.

6. **Final Products**: Therefore, under aerobic conditions, the key metabolic fate of pyruvic acid is its conversion into carbon dioxide and water through the processes of oxidative decarboxylation and the citric acid cycle.

### Conclusion:
The correct answer to the question is that under aerobic conditions, pyruvic acid forms carbon dioxide and water.

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