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Multiple Choice
What is the maximum yield of ATP from aerobic respiration in prokaryotes?
A
32 ATP
B
28 ATP
C
38 ATP
D
40 ATP
Verified step by step guidance
1
Understand the process of aerobic respiration, which includes glycolysis, the Krebs cycle, and the electron transport chain. Each of these stages contributes to the production of ATP.
In glycolysis, glucose is broken down into pyruvate, producing 2 ATP molecules and 2 NADH molecules. This occurs in the cytoplasm.
During the Krebs cycle, each pyruvate is converted into acetyl-CoA, which enters the cycle. This process generates 2 ATP, 6 NADH, and 2 FADH2 per glucose molecule.
The electron transport chain, located in the cell membrane of prokaryotes, uses NADH and FADH2 to produce ATP. Each NADH can generate approximately 3 ATP, and each FADH2 can generate approximately 2 ATP.
Calculate the total ATP yield by adding the ATP produced in each stage: 2 ATP from glycolysis, 2 ATP from the Krebs cycle, and the ATP generated from NADH and FADH2 in the electron transport chain. This will give you the maximum yield of ATP in prokaryotes.