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Ch 10: Photosynthesis; Ch 9: Cellular Respiration
GlycolysisGlycolysis 2 ATP + 1 Glucose 2 pyretic acid + 4 ATP |
Substrate level phosphorylationATP
PFK=allosteric enzyme inhibited by ATP
ChloroplastsParts: outer/inner membranes, intermembrane space, thylakoid membrane/space, storm |
Chlorophyll a/b=absorb red/blue/violet
Carotenoids=absorb blue/green/violet
Noncyclic PhotophosphorylationPhotosystem II (P680)PhotolysisETCChemiosmosisNADPPhotosystem I (P700)
| | Citric Acid/Krebs Cyclesubstrate-level phosphorylationATP+pyruvate
pyruvate+coenzyme Aacetyl CoA
products=3 NADH, 1 ATP, 1 FADH, CO₂
Cyclic PhotophosphorylationCycles electrons from P680 ETCP700primary electron acceptorcytochrome complex (ETC)
Photorespiration, C-4, & CAMPhotorespiration | rubisco binds with O₂ instead of CO₂; produces no ATP or sugar | C-4 plants | use alternate C-fixation (PEP carboxylase) that ends in a 4C compound (occurs in mesophyll & bundle sheath cells) | CAM plants | carbon fixation to organic acids at nightlight reactions release CO₂ in the day |
| | ETC/Oxidative Phosphorylation/Chemiosmosischemiosmosis= energy-coupling mechanism using potential energy in H+ gradient; phosphorylates ADPATP
oxygen=final hydrogen acceptor
Fermentationfacultative anaerobes | tolerate, but do not use, O₂ | obligate anaerobes | cannot live in an environment w/O₂ | alcohol fermentation | converts pyruvate into ethyl alcohol+CO₂ & oxidizes NADH to NAD+ | lactic acid fermentation | reduces pyruvate into lactic acid (lactate) & oxidizes NADH to NAD+ |
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