Explain, with complete sentences, how prokaryotes gen
mplete sentences, how prokaryotes generate an average of two more atp's than
eukaryotes during aerobic respiration
hint: membrane-bound organelles

In eukaryotes, 2 ATP molecules out of the total 4 produced in glycolysis are used up to transport the NADH molecule into the mitochondria.  

Explanation:

The glycolytic pathway in both eukaryotes and prokaryotes generates 4 ATP molecules and 1 NADH per glucose. In eukaryotes, the next step of cellular respiration, the Kreb's cycle takes place inside the mitochondria. 2 ATPs out of the initial 4 are used by NADH as they cross the mitochondrial membrane. The 4 ATP remain intact in prokaryotes as cellular respiration takes place in the cytoplasm and cell membrane.The conversion of 2 pyruvate molecules into Acetyl Co-A by the pyruvate dehydrogenase complex produces 2 NADH.Kreb's cycle produces 2 ATPs, 6 NADH and 2 FADH2.All in all, 10 NADH and 2 FADH2 molecules enter the Electron Transport Chain (ETC).Each NADH yields 3 ATP. Therefore, 10*3=30 ATP.Each FADH2 yields 2 ATP. Therefore, 2*2= 4 ATP.Therefore, the 4 ATP from glycolysis plus 34 ATP generated in the Kreb's cycle and the electron transport chain gives a total of 38 ATP.

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