Which of the following is a function of the enzyme hexokinase in glycolysis?

A) Conversion of glucose to glucose-6-phosphate

B) Conversion of fructose-6-phosphate to fructose-1,6-bisphosphate

C) Conversion of pyruvate to lactate

D) Conversion of glucose-6-phosphate to fructose-6-phosphate

Click to reveal answer

Answer: A. Conversion of glucose to glucose-6-phosphate

Explanation: Hexokinase catalyzes the first step in glycolysis, which is the

phosphorylation of glucose to form glucose-6-phosphate. This reaction uses one

molecule of ATP.

If you have any questions or see any issues with this page, please get in touch with matthew.russell@inspiraadvantage.com

Day 114 MCAT Practice Question