Please enable JavaScript.
Coggle requires JavaScript to display documents.
energy: respiration, net gain of 2 ATP, NAD+ and FAD are hydrogen…
energy: respiration
B. ANAEROBIC RESPIRATION
without oxygen --> no final electron acceptor in ETC
only glycolysis can consistently continue
conversions
2 ADP --> 2 ATP
2 pyruvate --> 2 lactate (fermentation to regenerate NAD+)
2 NAD+ --> 2 NADH
no CO2 produced (no link rxn)
1A. GLYCOLYSIS
conversions
1 glucose --> 2 pyruvate
2 NAD+ --> 2NADH
2 ATP --> 2 ADP
4 ADP --> 2 ATP
substrate level phosphorylation
to convert ADP + Pi --> ATP
carried out in the cytoplasm
2A. LINK REACTION
conversions
2 pyruvate --> (oxidative decarboxylation) 2 acetyl CoA
1 NAD+ --> 1 NADH
pyruvate (after decarboxylation) --> CO2
catalysed by a multi-enzyme complex in the mitochondrial matrix
only can occur in aerobic respiration
3A. KREB'S CYCLE
conversions
3 NAD+ --> 3 NADH
1 FAD --> 1 FADH2
2 ADP --> 2 ATP
can only occur in aerobic respiration
occurs in the mitochondrial matrix
4A. OXIDATIVE PHOSPHORYLATION
occurs on inner mitochondrial membrane
chemiosmosis
conversions
28 ADP --> 28 ATP
each NADH enough proton-motive force to synthesise 2.5 ATP
each FADH2 enough proton-motive force to synthesise 1.5 ATP
ETC
conversions
1 NAD+ --> 1 NADH
1 FADH2 --> 1 FAD
2H+ + 1/2 O2 --> 1 H2O
e- are passed down a series of electron carriers until they reach molecular oxygen (final electron acceptor)
energy released is used to pump protons (H+) across inner mito membrane
net gain of 2 ATP
NAD+ and FAD are hydrogen acceptors
NAD+ and FAD regenerated is sent back to glycolysis, link rxn, Kreb's cycle
net gain of 2 ATP
net gain of 28 ATP
AEROBIC: total gain of 32 ATP
ANAEROBIC: total gain of 2 ATP