NEET2019BotanyRespiration in PlantsActual
Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by:
Options
- AAldolase
- BHexokinase
- CEnolase
- DPhosphofructokinase
Correct answer
B. Hexokinase
Step-by-step solution
Hexokinase. In the first step of glycolysis, the glucose ring is phosphorylated. Phosphorylation is the process of adding a phosphate group to a molecule derived from ATP. As a result, at this point in glycolysis, 1 molecule of ATP has been consumed. For enzyme hexokinase, Mg ++ ions are used as activator.