Which of the following reactions is catalyzed by a kinase? A) glycerol + ATP glycerol phosphate + ADP B) lactate + NAD⁺ pyruvate + NADH + H⁺ C) glucose 6-phosphate fructose 6-phosphate D) UDP-galactose + glucose 1-phosphate UDP-glucose + galactose 1-phosphate E) fructose 1,6-bisphosphate + H₂O fructose 6-phosphate + Pi

Question

Which of the following reactions is catalyzed by a kinase? A) glycerol + ATP <===> glycerol phosphate + ADP B) lactate + NAD⁺ <===> pyruvate + NADH + H⁺ C) glucose 6-phosphate <===> fructose 6-phosphate D) UDP-galactose + glucose 1-phosphate <===> UDP-glucose + galactose 1-phosphate E) fructose 1,6-bisphosphate + H₂O <===> fructose 6-phosphate + Pi

Quizplus · Accepted Answer

A kinase is an enzyme that catalyzes the transfer of a phosphate group from ATP to another molecule. In choice A, glycerol is phosphorylated to form glycerol phosphate, which is catalyzed by the enzyme glycerol kinase. Therefore, choice A is the correct answer. The other choices do not involve the transfer of a phosphate group from ATP to another molecule and are not catalyzed by a kinase.

Which of the Following Reactions Is Catalyzed by a Kinase