ch369_sp11_op2_notes - Oxidative Phosphorylation - Chapter...

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Unformatted text preview: Oxidative Phosphorylation - Chapter 15 Using the energy contained within reduced cofactors (NADH & QH 2 ) to make ATP. Oxidative phosphorylation (OP) occurs in the mitochondria (in eukaryotes). The overall reaction for oxidizing NADH is: The reaction is done in a series of small steps, using a series of spontaneous electron transfer (ET) reactions that release energy. Energy from ET chain pumps excess protons into intermembrane space. Then ATP uses the energy released by spontaneous H + transport to make ATP. ATP synthase uses the energy released by proton flow to make ATP. The energy released by spontaneous H + flow is used to create an environment where ATP is stabilized relative to ADP + P i ATP synthase Oxidative phosphorylation can make a lot of ATP. I n total, about 32 to 36 ATPs by fully oxidizing one molecule of glucose. The process is not 100% efficient; some energy that does not successfully make ATP is lost as heat. Study question #71...
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ch369_sp11_op2_notes - Oxidative Phosphorylation - Chapter...

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