AP BIOLOGY

Detailed explanation-1: -Hexokinase catalyzes the phosphorylation of glucose, the rate-limiting first step of glycolysis.

Detailed explanation-2: -Hexokinases are intracellular enzymes that phosphorylate glucose, mannose and fructose to the corresponding hexose 6-phosphates.

Detailed explanation-3: -A hexokinase is an enzyme that phosphorylates a six-carbon sugar, a hexose, to a hexose phosphate. In most tissues and organisms, glucose is the most important substrate of hexokinases, and glucose 6-phosphate the most important product.

Detailed explanation-4: -Hexokinase is the first enzyme in the glycolytic pathway, and it converts glucose into glucose-6-phosphate. It uses ATP to phosphorylate the 6-hydroxyl group of glucose, and it is inhibited by its product, glucose-6-phosphate. It is also allosterically relieved of product inhibition by phosphate.