370 OXIDATIVE PHOSPHORYLATION (4.4.2)

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4 Terms

1
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Two steps

  1. Oxidation of NADH and FADH2, creates proton motive force

  2. Phosphorylation of ADP into ATP by ATP synthase, which uses the proton motive force


2
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Proton motive force

—Oxidation of NADH and FADH2 sends H+ outside the membrane

—H+ comes back in through ATP synthase to make ATP

<p>—Oxidation of NADH and FADH2 sends H+ outside the membrane</p><p>—H+ comes back in through ATP synthase to make ATP</p>
3
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1 (electron transport chain — oxidation)

—NADH and FADH2 gives the electron to enzyme Q, which gives it to Cyt C, then to O2 to make water
—H+ exits the membrane via the complexes

<p>—NADH and FADH2 gives the electron to enzyme Q, which gives it to Cyt C, then to O2 to make water<br>—H+ exits the membrane via the complexes</p>
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2 (phosphorylation)

—Each turn of ATP synthase produces 3 ATP
——→2.5 ATP / NADH——→1.5 ATP / FADH2


—10 NADH gives 25 ATP (2 NADH from glycolysis, 2 from forming acetyle-CoA, 6 from krebs)
—2 FADH2 gives 3 ATP (2 FADH2 from krebs)


TOTAL: 32 ATP (glycolysis and krebs gives 4 ATP, ATP synthase makes 28)

<p>—Each turn of ATP synthase produces 3 ATP<br>——→<mark data-color="yellow" style="background-color: yellow; color: inherit;">2.5 ATP / NADH</mark><mark data-color="#ffffff" style="background-color: rgb(255, 255, 255); color: inherit;">——→</mark><mark data-color="yellow" style="background-color: yellow; color: inherit;">1.5 ATP / FADH2</mark></p><p><br>—10 NADH gives 25 ATP (2 NADH from glycolysis, 2 from forming acetyle-CoA, 6 from krebs)<br>—2 FADH2 gives 3 ATP (2 FADH2 from krebs)</p><p></p><p>TOTAL: 32 ATP (glycolysis and krebs gives 4 ATP, ATP synthase makes 28)</p>