BIOL 243 Lecture Notes - Lecture 1: Photosystem, Photosynthetic Reaction Centre, Atp Synthase
26 Jan 2015
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8: sec=ons 8. 1, 8. 3, 8. 4. Announcements: change in dr. gieg"s o ce hours tuesday oct 21: Thurs oct 23: 3- 5 pm (edwards) Fri oct 24: 9- 11 am (gieg) Fri oct 24: 1- 2:30 pm (edwards) & 2:30- 7 pm (turner) What"s happening today: light dependent reacaons, two photosystems (psi and psii) harvest photons to: Generate electrochemical gradient to make atp. Provide electrons to generate energy electron carrier nadph. Antennae complexes allow for the precise conditions for light absorption and energy transfer. Photosystems are pigment- protein complexes that transform light energy. Electrons from water end up in. Antennae complexes are arranged to funnel light energy towards the reaction. The players: psi = photosystem i, psii = photosystem ii, cytochrome = cyt, pq = plastoquinone, pc = plastocyanin, fd = ferridoxin. Photosynthe=c etc: produc=on of nadph, pmf & atp. Energy used to strip electrons from h2o. First half of photosynthe=c etc. Passes e- and h+ to cyt.
