Micro Ch 14
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Proton motive force
generated by ETC
chemical energy across cellular membrane
Goal of ETC?
to create a proton motive force to allow for oxidative phosphorylation
What is needed for the Electron Transport System?
A reduced electron donor to begin with (generally NADH)
an oxidized electron acceptor to end with
organic electron donors involved
inorganic electron donors used to START reaction
What is aerobic respiration?
respiration with oxygen as a final electron acceptor (makes water)
In respiration, NADH donates ____ and iron centers accept ____?
Iron centers accept
is embedded in the membrane; pumps protons
protrudes into cytoplasm; generates ATP
In photorespiration, what occurs in place of glycolosis?
Photolysis. Then electron carriers (NADPH) are transfered to ETC (same as anything else) for oxidative phosphorylation.
What is an antenna complex?
Groups of chlorophyll arranged like a satellite dish to harness/absorb light.
What is a phototrophic reaction center?
the protein complex in which chlorophyll photoexcitation connects to the ETC
stacks inside of chlorophyll
photolysis centers located in thylakoid membrane
What is the basic design of photolysis?
reaction center complex
found in "green sulfur" bacteria
organic electron donor
NAD or NADP reduced
found in "purple non-sulphur" bacteria
sperates elctron from bacetriochlorophyll; eventually, an electron is give back.
Oxygenic Z pathway; what is produced for every 2 H
found in cyanobacteria and cholorplasts
3 ATP, 2 NADPH, O2
Micro Ch 14
Okstate Microbiology Chapter 14