Phosphofructokinase is an allosteric enzyme that catalyzes the conversion of fructose 6-phosphate to fructose 1,6-bisphosphate, an early step of glycolysis. In the presence of oxygen, an increase in the amount of ATP in a cell would be expected to
A) inhibit the enzyme and thus slow the rates of glycolysis and the citric acid cycle.
B) activate the enzyme and thus slow the rates of glycolysis and the citric acid cycle.
C) inhibit the enzyme and thus increase the rates of glycolysis and the citric acid cycle.
D) activate the enzyme and increase the rates of glycolysis and the citric acid cycle.
E) inhibit the enzyme and thus increase the rate of glycolysis and the concentration of citrate.
DNA to RNA to protein to enzyme (hexokinase).
Reaction coordinate diagram comparing enzyme-catalyzed and uncatalyzed reactions
Enzyme temperatures
Covalent regulation of enzyme activity.
Bypass 1: Conversion of Pyruvate to Phosphoenolpyruvate
An Enzyme in Action Enzymes speed up reactions in your body