BIOL 1306 Photosynthesis Notes, Study notes of Biology

Study notes covering BIOL 1306 photosynthesis chapter

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2025/2026

Uploaded on 12/14/2025

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fat) L jew oF Photo: -Phaisunthesis — process Using sunliant to manufacture carbohy arates “Organisms: —Puttropins - “SOlt Feeders’; perform Photusyintine sis ~ Phonan phe: speriticaly use SUNiQnt as enemy Source, ~HeAuotruphs: “ditferenr Feeaers "; Consume fod for sugavs (Mumansy “Overall xn: WOO, + WHO + ant energy > Cully + 0, Loreverse of Cellular fecpiration. ‘Global significance: proinsumtinesis powers tne biosphere dvives ne entvqu cyote by replenishing ormanic moleciies 4 Producing, O2 2.cW\oropings Structure 4 Eunorion -Chlarap Last- organedle in plants 4 algnej most Phorsy thesis occurs in Mesophyll ces of leaves -sinmata- Pores on leat where COs. eior % Oo exits “Thu latoid Men brang: 3'4 ynem brane system Corher Man inner 2 outer oF chloro plags) ; farms sace called tHaylazaids ‘Granum- a stack of ny latoias “Stroma- tuid Filled veqion between +nylatoid membrane 4, inner men brane- 3. The Nature of Lignt 4 Pigments “Ligi behaves ac botha wave 4 a pavtiole (proton) be Shortt wavelength Coiue liqit>=More energy Longer waveeno th Crea \ight)= Less energy “Rhotusyntheric pigments absorb specitic waverengtns OF liqnt 2 ferlecromers ly Chlovo phyti_ a _4 & * Prima pigments; appear green ble they (eFeEt aren Structure: porphyrin ring, WI Mo, ion at Ve Genter if Carotenoids .Xanthophulls + ACcessom piqments ; ADSOrb different wavelenams which exttnd vange oF usable lint for phos ynnesis; antioxidants “Alosorbtion vo. Action Spectrum {cldseiu wnatcn) — AlpsarPridn spettrum - Shows wavelenata a piqmet alesorbs — Aorion_SPectrum: shows relative offectiventes of ai Fferent WAIL ats for avi ving. Plots ytnesis n_awhode Plan. U.The Lig - Derendemt Pea crions * Location: ThylaKcid mem brane -Gaal* conver+ light eneray wir chemical Fhemy inne tom oF ATP} NADH WAeasing D2 AS a bu-Prodvor Vey strmotares: Phhotuswsitns {141 ~ Bott Contain a liint Marvesting comonx Canrenna complex) Which absorns phottns 4 transfers NNQY Via Lesonance enemy ans fer 0 AYRA cKO Centar 5. Linear Elenan Flaw (The 2- Scheme) Primary pacniway producing bot ATP 4 NADPH \) Si: Ligint Wits Crhlorophyll a in PUsO in the reaction center. Enerqu excites & to higher enerny state Excited & does tr primary & acceptor, caving PUB as Pusd*. DANA Sol Ng: AN eMZUMe Splits HD donating & +d Psi (reauciing it to P80). On i reused and Kt builds upinthe +nylakoid lumen: D) Electron +ransport: Flectrons “Fall” cawn an ETC From PSil tv Psi. Energy mACnced is used to PUMP _H* into tne HnYLAKIA (AMEN Creating a gradient. AYPSI : Liqit excites P2700, winicn donates an ew the primavy.& Veceptor of PSI ( PT00> P70") . DV NADPH Formation: Flectrons trom PSI are, PUSsed to Ferredoxin (Fa) and+hen to NAD +y form NADPH (nis aca removes an Hi rm tne stroma) The Z-Scheme’ * par oF e7 resemble a Zon an energy chart astney drop in energy Derween pnowsugrems A are, ounsiva again in PS\. fo AIP Guntnecic: Phasomaru\ation THe. k* qvadi¢n: Chiqh inivmen. tow in soma) Keprsdts porontial energy Cpratnn motive force) ATR SWIMNASE CILOWS HYD FLOM OGL IviTD tine SONA sing QaneaTpYy ro PNOSPhdry ake, ATP, MAKING ATP. ~ Chemios mosis | prot phosphorulation AF gyodiont qenwated by: DET Wlease From water spliting inte \men Dt PUMPING by tne. FTC SAT emoval From ne Shama dung NADPH Tirmation. tic Flenan Haw “Aittrnative Parniway thor omy uses Pst Dincecs: xcitea G From PSI once back» ETC between -Hne-two PS “Resutt: Generics WF gra dite \eadingtn ATP production jour NO NADPH ic made Ano Onis reAeagen: -ENGhion: Hoonaine 4a Hedin ancient par; AlN Plants knlane ATPL NADPH output Adgamner tan