Refer to the Figure Below

Short Answer

Refer to the figure below. Hexokinase catalyzes the reaction between glucose and ATP to form glucose 6-phosphate and ADP.The figure shows how the active site of hexokinase orients ATP for attack by glucose during the reaction.In the absence of enzyme, this reaction would be much slower because there would be a _______ number of orientations of the two substrates compared with the number of orientations provided by the enzyme.