Test 3 outline

Test 3 outline - Dakotah Forell Lecture 18- st Nov. 1 Bio...

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Dakotah Forell Lecture 18- Nov. 1 st Bio 200 – Outline Kindom Protista- Eukaryptic, membrane-bound organelles, single cell, asexual I. Subkingdom Protozoa - Lack cell walls and chloroplasts - Classified by type of locomotion - heterotropic A. Mastigophora - One or more flagella - Probably the most primitive protista - Fee-living and parasitic forms - Ancestral form to other protists B. Rhizaria - “Naked” some with flagella - Radiolarians –silicon shell (test) - Foraminiforans –calcium carbonate shell (test) - Probably ancestral to slime molds C. Sporozoa - Parasitic protozoon's e.g. Malaria - Non-motile: some do have flagellated gametes D. Ciliophora (ciliates) - Most complex protozoon's - Rows cilia for feeding and locomotion - Gut - Multiple nuclei - Reproduction by conjugation E. Choanoflagellates - Collared flagellates (some colonial) - Ancestral to multicellular animals II. Fungal-like Protista = cellular slime molds - Free-living amoebae - Amoebae aggregate to form “slug” - Slug differentiates forming a fruiting body with spores - III. Plant-like Protista – unicellular algae - Classified by chlorophyll type – photosynthesis – cell walls -- contain chloroplasts A. Pyrrhophyta (Dinoflagellates) - Chlorophyll a and c - Two flagella - Red tide B. Chrysophyta (Diatoms) - Chlorophyll a and c
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- Silicon shells - Most of oceanic photosynthesis - Non-flagellates except some gametes C. Xanthophyta (Yellow-green algae) - Chlorophyll a and c D. Euglenophyta (Euglanas) - Chlorophyll a and b - No cell wall - Many heterotrophs E. Plant Kingdom- multicellular algae - Red algae: Chlorophyll a and d - Brown algae: Chlorophyll a and c - Green algae: Chlorophyll a and b Evolution of Eukaryotic cell 1. Membrane In folding - assumes that the Plasma Membrane invaginates and the membranous structures of the cell are derived from these enfoldings. - Furthermore, the chloroplasts and mitochondria also derive by this mechanism. - Good hypothesis: simple and is testable 2. 3. Evidence of Endosymiotic hypothesis Similarities between bacteria, mitochondria and chloroplasts Self-reproducing by binary fission Size of organism and genome Single circular naked DNA Proportion of (G & C) Same sized ribosome Protein synthesis inhibited by antibiotics
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Enzymes for synthesis of DNA, RNA and protein Electron transport system Lecture 19- Nov. 3 rd Kingdom Fungi- - Eukaryotic, Lack photosynthesis pigments, Multicellular, Heterotrophic absorption, Modes of life 1. Saprophytic 2. Parasitic 3. Mutualistic: lichens and mycorrhizae Subkingdom- Gymnomycota- slim molds – amoeboid stage in life cycle Division Myxomycophyta – plasmodial (a cellular) slime mold Spores (n) myxamebae (n) Zygote (2n) Plasmodium Acrasiomycota – cellular slime molds Subkingdom- Eumycota- “true fungi” - Have rigid cell walls - Have hyphaes which form a complex web, the mycelium - Have spores sexual or asexual Division Oomycota- water molds
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This note was uploaded on 07/26/2011 for the course BIO 200 taught by Professor Herreid during the Fall '07 term at SUNY Buffalo.

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Test 3 outline - Dakotah Forell Lecture 18- st Nov. 1 Bio...

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