MDCAT Biology MCQ #638

MDCAT Biology MCQ #638

1. Question 1

   Q1. What is the purpose of the citric acid cycle in cellular respiration?

   • A) To generate ATP through substrate-level phosphorylation
   • B) To produce NADH and FADH2 for the electron transport chain
   • C) To drive the synthesis of ATP through chemiosmosis
   • D) To facilitate glycolysis

   Answer: To produce NADH and FADH2 for the electron transport chain

   Explanation: Citric acid cycle: produces NADH and FADH2, unlike glycolysis.