Chapter 27 Eukaryotes By: Isabella Cox AP Biology Outline • • • • • 27.1 How did the Procaryotic ecell become a Eukaryotic cell? 27.2 What makes protists diverse? 27.3 How do protists affect the world around them? 27.4 How do protists reproduce? 27.5 What Are the evolutionary relationships among Eukaryotes? How did the Procaryotic become a Eukaryotic cell? • Endosymbiosis occurred changing the prokaryotic cell Section 27.1 Vocab • Primary endosymbiosis is when a eukaryotic cell engulfs another living prokaryote Section 27.1 Vocab • Secondary endosymbiosis is when a eukaryote cell engulfs another eukaryote cell What makes protists diverse? • • • • different niches ways of moving different vacuoles different cell surfaces Section 27.2 Vocab • Pseudopods- a temporary, soft extension of the cell body that is sued in location, attachment to surfaces, or engulfing particles How do protists affect the world around them? • There can be positive or negative affects on the world • Malaria is a deadly • Still rely on the use of ancient protists How do protists reproduce? • Binary fission- equal splitting of one cell into two, with mitosis followed by cytokinesis • Multiple Fission- splitting one cell into multiple cells • Budding- the outgrowth of a new cell from the surface of an old one • Spores- the formation of specialized cells that are capable of developing into new organisms Section 27.4 Vocab • Conjugation- when two paramecium line up and fuse in the oral groove of the body • Haplontic- a type of life cycle in which the zygote is the only diploid cell and mitosis occurs only in haploid cells • Diplontic- a type of life cycle in which gametes are the only haploid cells and mitosis occurs only in the diploid cells What are the evolutionary relationships among Eukaryotes? • There a different groups such as Chromalevolates, Plantae, Rhizaria Section 27.5 Vocab • Chromalveolates- group of photosynthetic organisms • Dinoflagellates- unicellular, two flagella, they take on different forms depending on their enviroments • apicomplexians- a mass of organelles contained in the tip of a cell Resources • http://evolution.berkeley.edu/evolibrary/article/_0/endosymbiosis_03 • http://endosymbiotichypothesis.wordpress.com/primary-versus-secondary-endosymbiosis/ • http://www.shmoop.com/images/biology/biobook_cells_1.png • http://sharonapbio-taxonomy.wikispaces.com/file/view/protista.gif/49293403/450x181/protista.gif • http://upload.wikimedia.org/wikipedia/commons/thumb/7/75/Helgoland_Lummenfelsen_22067.JPG/500pxHelgoland_Lummenfelsen_22067.JPG • http://www.robaid.com/wp-content/gallery/various/brown-algae-kelp.jpg • http://www.cellnique.com/media/catalog/category/red-algae-extract.jpg • http://cdn.phys.org/newman/gfx/news/hires/2013/rgtfth.jpg • Sadava, David, et al...Life: The Science Biology, Ninth Edition. n.a.: Sinaur Associates, Inc, 2011.