Given: Glucokinase (in liver) catalyzes the same reaction
as hexokinase, but compared to hexokinase, glucokinase has a
substantially higher Km for glucose. Which of
the following statements is most reasonable?
When glucose levels rise after a meal, the hexokinase reaction
speeds up but the glucokinase reaction does not.
When glucose levels rise after a meal, the glucokinase reaction
speeds up but the hexokinase reaction does not.
When ATP levels rise after a meal, the glucokinase reaction
speeds up but the hexokinase reaction does not.