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Photosynthesis

TermDefinition
Following atoms C in CO2 goes to glucose, Hydrogen comes from water, and oxygen comes from CO2, then for oxygen, half comes from co2 and half comes from water
Photosynthesis Anabolic and exergonic, light reactions, the calvin cycle.
Overview of Light reactions: Occur in the thylakoid membrane in photosystems and converts solar energy to chemical energy Chemical energy in two forms: NADPH and ATP Light energy (photons) excite electrons in “photosystems”  sent through an ETC
Photosystem Complexes of proteins that direct incoming photons to “reaction center” where chlorophyll a molecules produce excited electrons and transfer them to an electron transport chain
Noncyclic (linear) electron flow Electrons move from PSII to PSI via an ETC = ATP e-’s final stop reduces NADP+ to NADPH. Produce: ATP and NADPH Requires: water
Generation of ATP “fall” of electrons from PS II to PS I provides energy to pump H+ into thylakoid lumen = potential energy ATP synthase allows diffusion of H+ ions back to stroma leading to ATP formation, and will be used in calvin cycle
Created by: nuhaSalim
 

 



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