most of ATPcomes from oxidative phosphorylation
per glucose
Glycolysis 2ATP
Pastille phosphitulation
2634ATP
total 3038ATP 40 efficient Gasoline engine 25 30
no sugar cells canget energy from many reduced organic molecules
Aerobic vs Anaerobic
conversion of NADHbackintoNADT byoxidativephosphorylation requiresoxygen
w f w fo limitedpoolofNADT
noNAD noglycolysisorcitricacidcycleeither
solution if lacking oz Fermentation
Fermentation to convert want last hu1a9sistoconygntaYthttoNaDHtyeag
1 Lactiaacidfermentation usedbyus
2 Alcoholfermentation usedby yeast
productsof fermentation lacticacidorethanol cannot
enter thecitricacid Krebs cycle
no oxygenforoxidativephosphorylation
2ATPglucose
in aint.iriiratonionain
someuse organic molecules asthe final eacceptor instead of 02
someprokaryotes alwaysuse aerobic respiration across cellmembrane but otheralwaysuseother electron
acceptors anaerobicrespiration
originof respiration
already present in bacteria andarchaea
early cellsevolved mechanisms to pump H outof cell powered by ATPandETC
useboth ETOand ATPsynthasebackwards to pump H out of cell to reduceacidityof cytosol provide it gradient
for cotransporters
Photosynthesis
gettingreduced organic compounds from co and sunlight
moroman
and some proti iii In c c.int i.kaiiciin
chloroplast membranesa membranes outer inner
membrane wrapped discs thylakoids stacked into grana
by iiiii In ioas tYtr'iiadiicEmitocnonarial
matrix
light vs Dark Reactions most of an weight in trees comesfrom air
buselighte calvin cycle usecon e from NADPH
tomake ATP e in ATPtomakesugar
NADPH 02 lightreactions absorbenergyfromlight to drivean ETC inthylakoid
membrane that makes ATP and NADPH
stay
in thylakoid in stroma
membrane