A True Statement Concerning Phosphofructokinase- (PFK-) and Fructose-,-Bisphosphatase Is That

Multiple Choice

A true statement concerning phosphofructokinase- (PFK-) and fructose-,-bisphosphatase is that

A) PFK-1 catalyzes the fastest step in glycolysis.
B) PFK-1 catalyzes a reversible step in both glycolysis and gluconeogenesis.
C) PFK-1 is not found in red blood cells.
D) Fructose-1,6-bisphosphatase requires ATP for energy.
E) Fructose-2,6-bisphosphate is a positive allosteric regulator of PFK-1 and is a negative allosteric regulator of fructose-1,6-bisphosphatase.