This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carbohydrates, Subject name: Biochemistry
Maximum number of energy rich phosphate is formed from which of the following pathways? 
Select and explain. 
A. Glycolysis, B. Gluconeogenesis, C. HMP shunt, D. Citric acid cycle
D: Citric acid cycle
Answer: D: Citric acid cycle 
Explanation: Ans. is 'd' i.e., Citric acid cycle* Citric acid cycle or Kreb's cycle generates 10 ATPs for every acetyl Co A that enters into citric acid cycle.* Aerobic glycolysis generates 7 ATPS for every molecule of glucose* Anaerobic glycolysis generates 2 ATPs for every molecule of glucose utilised* HMP shunt is a pathway which neither generates ATP nor utilises ATP.