Sl Paper

M08/4/BIOLO/SPM/ENG/TZ2/XX 22086016 Biology Standard level subject 1 Wednesday 14 May 2008 (afternoon) 45 minutes instructions TO CANDIDATES Do not open this examination paper until instructed to do so. respond all the questions. For for separately one question, choose the settlement you consider to be the best and indicate your choice on the answer sheet provided. 2208-6016 12 pages ©International Baccalaureate formation 2008 2 1. M08/4/BIOLO/SPM/ENG/TZ2/XX compassionatespermandeggsbothconsistofsinglecells. Whatisadifferencebetweenthem? A. B. C. D. Sperm domorechromosomesthaneggs. egghavemorechromosomesthansperm. Spermhavea largesurfaceareatovolumeproportionthaneggs. Eggshavealargersurfaceareatovolumeratiothansperm. 2. AstudentobservesanddrawsanAmoeba,usingthehighpower electron lensofamicroscope.The diam ofthedrawingis100mm.TheactualdiameteroftheAmoebais100 µ m. What is the magnification ofthedrawing? A. B. C. D. 0.001 100 four hund red 1000 3. Whichtypesofmetabolicactivityarefoundinprokaryotes? A. B. C. D. I. II. hullabaloo Nitrogen fixation III. Photosynthesis None Ionly IandIIonly I,IIandIII 2208-6016  4. Whatisadifferencebetween graftandanimalcells? A. B. C. D. M08/4/BIOLO/SPM/ENG/TZ2/XX puppet cells burst when they take in excess water by osmosis whereas embed cells do not. adjustcellsstorecellulosewhereasanimalcellsstorestarch. Animalcellshaveribosomeswhereasplantcellsdonot. Plantcellshaveacell beleaguerwhereasanimalcellshaveacellmembrane. 5. Whatensuresthatmitosisproducestwogeneticallyidenticalnuclei? A. B. C. D. One of each of the twenty-three types of chromosome is pulled to each celestial pole of the cell by spindlemicrotubules. Halfofthechromosomesarepulledtoeachcentriolebymesosomes. Identical...If you want to turn back a full essay, effect it on our website: OrderEssay.net

If you want to get a full information about our service, visit! our page: write my essay