| Term | Definition |
|---|
| during electron transport, electron carriers alternate between _____ and ______ states | reduced, oxidized |
| flavoprotein | the 1st molecule of the electron transport chain |
| ubiquinone | only electron carrier that is not a protein; mobile within membrane |
| cytochromes | most of the electron carriers |
| heme group | prosthetic group of cytochromes that accepts/donates electrons |
| another source of electrons for the elec. trans. chain is: | FADH2 (but it adds electrons at complex II, so it provides less energy) |
| ___ ATP are made in electron transport | no |
| ATP synthase | the enzyme that actually makes ATP from ADP and inorganic phosphate; like ion pump in reverse |
| the _____ ______ drives the phosphorelation of ADP | proton gradient |
| chemiosmosis | when energy stored in the form of H+ gradient across a membrane drives cellular work |
| rotor | what rotates within the ATP synthase |
| stator | what is anchored in the ATP synthase |
| rod | also spins within ATP synthase |
| 3 ______ sites in the knob join ______ ____ to _____ to make ATP | catalytic sites, inorganic phosphate, ADP |
| creating the H+ gradient is the function of the ______ _____ ___. | electron transport chain |
| _____ uses the exergonic flow of electrons to pump H+ across the membrane. | electron transport chain |
| the diffusion through the ATP synthases of H+ drives _______ | chemiosmosis |
| the proton motive force is | the H+ gradient that drives H+ back across the inner mitochondrial membrane through specific H+ channels |
| prokaryotes do/do not use chemiosmosis | do use |
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