Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
Which process generates more ATP per molecule of glucose?
A
Citric Acid Cycle
B
Oxidative Phosphorylation
C
Fermentation
D
Glycolysis
Verified step by step guidance
1
Understand the context: ATP (adenosine triphosphate) is the energy currency of the cell, and different metabolic pathways generate varying amounts of ATP from glucose.
Identify the processes: The question mentions four processes - Citric Acid Cycle, Oxidative Phosphorylation, Fermentation, and Glycolysis. Each of these plays a role in cellular respiration and energy production.
Review each process: Glycolysis occurs in the cytoplasm and breaks down glucose into pyruvate, generating a net gain of 2 ATP molecules per glucose molecule. Fermentation, an anaerobic process, also yields 2 ATP per glucose molecule.
Examine the Citric Acid Cycle: This cycle, also known as the Krebs cycle, occurs in the mitochondria and produces 2 ATP molecules per glucose molecule, along with high-energy electron carriers (NADH and FADH2) that are used in oxidative phosphorylation.
Analyze Oxidative Phosphorylation: This process occurs in the mitochondria's inner membrane and uses the electron transport chain to produce approximately 26-28 ATP molecules per glucose molecule, making it the most ATP-productive process among those listed.