Biochemistry ATP is an allosteric regulator of: A Hexokinase and PFK 1 B PFK 1 and PFK 2 C PFK 1 and Pyruvate kinase D Glyceraldehyde 3 phosphate dehydrogenase and PFK 1 💡 Explanation ATP is an allosteric regulator of: ✓ Correct Answer: C. PFK 1 and Pyruvate kinase