AIIMS 2017 Botany Glycolysis MCQ Question

In glycolysis, the conversion of 2-phosphoglycerate to phosphoenolpyruvate involves the removal of a water molecule (H₂O) through a dehydration reaction, which is crucial for the formation of the high-energy enol phosphate. In contrast, the other options do not involve the removal of water; for instance, the conversion of glucose to glucose-6-phosphate and fructose-6-phosphate to fructose-1,6-bisphosphate are phosphorylation reactions that do not release H₂O, while option D is not applicable as it does not present a reaction. Understanding these specific reactions helps clarify the metabolic pathways and the role of dehydration in energy production.