Chap 7 Quiz: Citric Acid Cycle, ETC, and PMF Flashcards
The citric acid cycle generates
1 ATP
2 CO2
3 NADH/H+
1 FADH2
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Citrate
Isocitrate
Alpha-Ketoglutarate
Succinyl-CoA
Succinate
Fumarate
Malate
Oxaloacetate
(Substrate) Citrate to Isocitrate
Aconitase
(Substrate) Isocitrate to Alpha-Ketoglutarate
Isocitrate Dehydrogenase
(Substrate) alpha-Ketoglutarate to Succinyl-CoA
Alpha-Ketoglutarate Dehydrogenase
(Substrate) Succinyl-CoA to Succinate
Succinyl-CoA Synthetase
(Substrate) Succinate to Fumarate
Succinate Dehydrogenase
(Substrate) Fumarate to Malate
Fumarase
(Substrate) Malate to Oxaloacetate
Malate Dehydrogenase
Acetyl-CoA with Oxaloacetate
Produces Citrate : Citrate Synthase
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Citrate Synthase
Aconitase
Isocitrate Dehydrogenase
Alpha-ketoglutarate Dehydrogenase
Succinyl CoA Synthetase
Succinate Dehydrogenase
Fumarase
Malate Dehydrogenase
Components of the Electron Transport Chain (Occurs in matrix and inner mitochondrial membrane)
Complex 1
Complex 2
Coenzyme Q
Complex 3
Cytochrome C
Complex 4
Complex 1
NADH dehydrogenase
Site of NADH oxidation
4H+ out the mitochondrial matrix
(2) electrons transferred to ubiquinone (Complex Q)
Complex 2
Succinate Dehydrogenase
Generates FADH2 and ubiquinone
No protons pumped out the matrix
Complex 3
Ubiquinone/cytochrome c reductase
Electrons are transferred cytochrome c
Pumps 4H+ out of the mitochondrial matrix
Complex 4
Cytochrome C oxidase
Takes 4e- from cytochrome c
Pumps 2H+ out of the mitochondrial matrix
Reduces O2 to H2O
Uses four different electron carriers
ATP Synthase
Multimeric enzyme that uses electrochemical energy from the proton gradient to produce ATP from ADP and P
Proton Motive Force Defined
the electrochemical potential that promotes movement of protons (proton gradient) across membranes downhill to help activate ATP sythnase and create ATP
