Final answer:
Hexokinase and glucokinase enzymes catalyze the phosphorylation of glucose into glucose-6-phosphate in an important step of glycolysis. Hexokinase is found in nearly every tissue and has a higher affinity for glucose. Glucokinase is expressed in tissues active during high blood glucose levels.
Step-by-step explanation:
Hexokinase and glucokinase enzymes catalyze the phosphorylation of glucose, converting it into glucose-6-phosphate. This enzymatic reaction is an important step in glycolysis, the process of breaking down glucose for energy production. Hexokinase is found in nearly every tissue in the body and has a higher affinity for glucose than glucokinase, allowing it to convert glucose at a faster rate. Glucokinase is expressed in tissues that are active when blood glucose levels are high, such as the liver.