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Lecture 2

Lecture 2 [6th Jan + 11th Jan] Lecture notes provided on UWACE with additional notes made in class

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BIOL 120
Simon Chuong

Rental website: httphttp:una..watewhilcaocg:brn/cadinnptduc/rnnp0ur30h05se/sere%27B+i (a limitI otfi10only a subscription for 180 days Course Information 4. The plant c. lU.1.miCocoseciptfrmlntsn Last Lecture Evolutionary Innovations EARTH 6. L. eiaiiagta.wo.higruvienegsightfened Getting out of the water The challenges • PlaManlrovi• Photosynthesis sustain the life products (cosystem on earth (Otance of Plants , energy, organic 3. A year,G.eIn,theimld-st0Thsitge coSpchwennceolullcabedlttatanmttlparedaareefo Plants are composed of cells 3. Ne2w.1ehlOcThe cell is the basis of an organism’s structure organisms “Cell Theory” Developed by Schleiden and Schwann and reproduction 6. Eu5k.aP4okafrotr.oFomtLblsnt1.eanllonlifr Prokaryotic or Eukaryotic nuclenucleand larexrtharokroryotestc.5elsllion years ago) Eukaryotic cells typically range between 5-300.2-10 Prokaryotic Cells vs. Eukaryotic Cells Prokaryotes Fig.17.4 Eukaryotes Figs.18.24 & 3.4b m ▯ m Prokaryotic cells are surrounded by arganelles that controls the movement of water, gases, and molecules in and out of the cell cell membrane Fig. 17.2 baeromc hoprkiliprochlrrogaastsnanmyhadcetilrgtese You are what you eat: Eukaryotes was proposed to account for the photosynthetic bacterium ineuarlyotic cell ineantryotic cell Sommembranes and are separate cell structures configured like that of bacteria (in a loop) Fig. 3.4b 3. Th2e.1Bareafoulmglneraltabdelof macro(molro=large)okaryotes and Eukaryotes d)cipi)a)riucleiraciss Macromolecules (Lab#1, tissue printing) Prokaryotes and Eukaryotes d)Lipc)sP(bydnophohyd,rclif(eodio(scdAoandar buildngrbltydrogndegizaoxcti)i,atire,“prrgya)ms” the 6. Sy m.pasoplastoplasEl1.tAtmnsst all organelles in a typical plant cell are betweoutsicellmthebraneoplastfound in the cells of other eukaryotes Plants Cellular Structure : the space between plant cells : the “cyto: a: eve:ything except the cell wallhe Chloroplasts and the large chloroplast Structure of a Typical Plant Cell central vacuole plasmodesmacell wall Fig.3.4 • Pre•arhi•sInenpriEtditIiajonnowthnelertsfgfnenthe classthinfeelson.ineavews.d.hcrfunctie. of each part.eek 5. Ha v.eHer.etoeLo1.eChavenbmlhltsondylnd sacs chlodmosoroplastsphotosynthesis Signature Plant Cell Organelles thylakoids Fig.3.11 StoBiaoSoBliooCela”lologSolar Power 2. Plastids areverpati1.aPPdl(tispoareipeaf anothange(fromcelse type intopigments flIIersCIrdIfruicop(astloSIGNATURE Plant Cell Organelles , from Greek , from Greek, a type of plastid Fi . 3.12 Chromo leukos chroma = “white”, p lasts in red = “colour”, p pp er cells 6. 5. uHrelnm4.itSitcselshuol1.hVLacuo,t0x%candmplay orcrysnsssrbreamadorossolliddpiyaentseoltruesio Signature Plant Cell Organelles vacuus = “empty” (as it appears under the tonoplast) Fig.3.4b PMC=placellmael;G=agolV=Mv=cuilochondrion; T= tonoplast;
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