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End product of glycolysis is...

End product of glycolysis is

A

Citric acid

B

Glyceraldehyde

C

Phosphoglyceraldehyde

D

Pyruvic acid

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Glycolysis**: Glycolysis is a metabolic pathway that breaks down glucose (C6H12O6) into smaller molecules. It is the first step in cellular respiration. 2. **Process of Glycolysis**: Glycolysis occurs in the cytoplasm of the cell and consists of a series of 10 enzymatic reactions. During this process, one molecule of glucose is converted into two molecules of pyruvic acid. 3. **Chemical Structure**: Glucose is a 6-carbon compound, while pyruvic acid is a 3-carbon compound. This means that during glycolysis, the 6-carbon glucose is split into two 3-carbon molecules. 4. **End Product Identification**: The final product of the glycolysis pathway is pyruvic acid. Therefore, the end product of glycolysis is not citric acid, glyceric aldehyde, or phosphoglyceric aldehyde, but rather pyruvic acid. 5. **Conclusion**: The correct answer to the question "End product of glycolysis is" is **pyruvic acid**.
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