Biochemistry Number of ATP molecules and NADH formed in each cycle of glycolysis? A a) 4 ATP 2NADH B b) 2 ATP 2 NADH C c) 4 ATP 4 NADH D d) 2 ATP 4 NADH 💡 Explanation Number of ATP molecules and NADH formed in each cycle of glycolysis? ✓ Correct Answer: A. a) 4 ATP 2NADH