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In the liver, phosphofructokinase . . A. catalyzes a reversible reaction B. is activated by fructose-2,6-bisphosphate...

In the liver, phosphofructokinase . .

A. catalyzes a reversible reaction

B. is activated by fructose-2,6-bisphosphate

C. activity is enhanced by higher glucagon concentrations

D. A, B, and C above

E. A and B above

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