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MHT CET Medical202626 April 2026Morning ShiftBiologyRespiration in PlantsActual

Which one of the following conversion in glycolysis shows formation of water molecules from the substrate?

Options

  1. AFructose 6 phosphate Fructose 1,6 diphosphate
  2. BPhosphoenolpyruvate Pyruvic acid
  3. C2 Phosphoglycerate 2 Phosphoenolpyruvate
  4. DGlyceraldehyde 3 phosphate 1,3 diphosphoglycerate

Correct answer

C. 2 Phosphoglycerate 2 Phosphoenolpyruvate

Step-by-step solution

In glycolysis, the conversion of 2-phosphoglycerate to phosphoenolpyruvate is catalyzed by the enzyme enolase. This step involves the elimination of a water molecule (dehydration) from 2-phosphoglycerate to form the enol structure of phosphoenolpyruvate. Therefore, the formation of a water molecule occurs during the conversion of 2-phosphoglycerate to phosphoenolpyruvate. Answer: 2 Phosphoglycerate 2 Phosphoenolpyruvate

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