Eduprobe
Question:
In which of the following reactions of glycolysis, a molecule of water is removed from the substrate?
2-phosphoglycerate→Phosphoenol pyruvate
Glucose→Glucose-6-phosphate
Fructose-6-phosphate→Fructose-1,6 bisphosphate
Phosphoenol pyruvate→Pyruvate
Solution:
Options A and B represent the addition of phosphate group to glucose and fructose 6 phosphates respectively. Option D represents dephosphorylation of phosphoenolpyruvate into pyruvate. Dehydration of 2-phosphoglycerate to phosphoenolpyruvate includes reversible removal of a molecule of water from 2-phosphoglycerate. So, the correct answer is option C.