Electron Transport Chain
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Complex 1 | NADH dehydrogenase
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| NADH | sends 2 e- to Coenzyme Q
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| NADH | is a flavoprotein, helps generate proton gradient
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| NADH | sends 2e to Fe-S centers to Ubiquinone
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| NADH | transfers 4 protons out of matrix
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| NADH Coenzyme Q oxoreductase | UQ/UQH2
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| Complex II | Succinate dehydrogenase
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| FAD | sends 2e- to UQ via Fe-S centers
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| FAD | also a flavoprotein
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| FAD | no proton movement
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| Complex III | Coenzyme Q cytochrome C Reducatase
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| UQ Cyt-C Reductase | each half translocates 2 protons each
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| UQ Cyt-C Reductase | protons go to intermembrane space
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| UQ Cyt-C reductase | transfers 1 e- to cytochrome C via Fe-S centers and cytocrhome C sends 1e- to UQ via heme "b"
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| Cytochrome C | mobile 1 e- carrier on cytosolic side of intermembrane space
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| Cytochrome C | involved in apoptosis
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| Complex IV | cytochrome C oxidase
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| Cytochrome C oxidase | Final 4 e- are sent to oxygen; 'a' type heme and Cu, 1 proton per e-
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Created by:
snowkhat
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