OBJECTIVE FORESTRY

Detailed explanation-1: -The enzyme Hexokinase is known to catalyze the conversion of glucose to glucose-6-phosphate. It is an irreversible reaction and requires ATP. It is a part of glycolysis.

Detailed explanation-2: -Step 1: Glucose is phosphorylated by the enzyme hexokinase to form glucose 6-phosphate. Glucose gains energy by being phosphorylated at the expense of one ATP. Step 2: Glucose 6-phosphate is converted into its isomer, fructose 6-phosphate, by an isomerase enzyme.

Detailed explanation-3: -Because the decrease in free energy is so large, this reaction is virtually irreversible under physiological conditions. Glucose 6-phosphate stimulates glycogen synthesis from glucose 1-phosphate and inhibits both glycogen breakdown and its own formation from glucose.

Detailed explanation-4: -Hexokinase converts glucose to glucose 6-phosphate, trapping the glucose molecule inside the cell, thus starting off the process of glycolysis.