Chapter 6 (pdf 16) Flashcards
10 protons pumped out per NADH
-one NADH produces 3 molecules ATP
ATP synthase
6 protons pumped out per FADH
-one FADH2 produces 2 molecules of ATP
ATP synthase
this chain consists of the following components • Complex I – a.k.a NADH dehydrogenase complex • Complex II – a.k.a succinate dehydrogenase complex • Coenzyme Q • Complex III – a.k.a cytochrome bc1 complex • Cytochrome C • Comple IV – a.k.a. Cytochrome c oxidase complex
electron transport chain of mitochondria
Each carrier from this chain accepts electrons from previous carrier
• In process protons are pumped across membrane
electron transport chain of mitochondria
NADH provides more ______
PMF
ATP from oxidative phosphorylation
Respiration
ATP produced through re-oxidation of NADH and FADH2
Respiration
Has a maximum theoretical yield
Respiration
from glycolysis in respiration
2 NADH—> 6 ATP
from transition step in respiration
2 NADH—> 6 ATP
from TCA in respiration
6 NADH—-> 18 ATP
2 FADH2 —-> 4ATP
Less efficient with alternative electron acceptors and changes in some proteins
Anaerobic respiration
oxygen CAN NOT and DOES NOT act as a terminal electron acceptor
Anaerobic respiration
some bacteria use nitrate
-nitrate converted to nitrite
some use sulfur compounds
-DMSO to DMS
Anaerobic respiration
– Quinone carrier (menaquinone) produced for _______ this is in part is microflora contribution to animals as it is vitamin
Anaerobic respiration
Substrate phosphorylation
• 4 ATP
– Net 2 from glycolysis
– 2 ATP from TCA
ATP during Aerobic Metabolism
– Oxidative phosphorylation 34 ATP – 6 ATP from glycolysis » Re-oxidation of 2 NADH – 6 from transition step » Re-oxidation of NADH – 22 from TCA cycle » Re-oxidation of NADH and FADH2
ATP during Aerobic Metabolism
– Total yield
• 4 + 34 = 38 (theoretical maximum)
– EukaryoDc cells have theoretical maximum of 36
» 2 ATP spent crossing mitochondrial membrane
ATP during Aerobic Metabolism
