Taxonomy

Chapter 4: Characteristics of procaryotic and eukaryotic Cells staple Cell Types procaryotic Cells eucaryotic Cells Evolution of Endosymbiosis The Movement by Substances Across Membranes elementary Cell Types Prokaryote: wiz-celled organisms, and all are bacteria. eucaryote: noncellular or multi-cellular organisms Pro = before Eu = true karyon = nucleus Similarities: plasma membrane, desoxyribonucleic acid and cell wall ( emend cells) Differences: Eukaryotic DNA is in a nucleus butt by a thermonuclear membrane Prokaryotic DNA is in a nuclear constituent not encircled by a membrane Table 4.1:Similarities and Differences amid Prokaryotic/Eukaryotic Cells Prokaryotic cells consent a single circular chromosome; Eukaryotic cells produce paired chromosomes Prokaryotic cells overlook histone proteins; Eukaryotic cells have histone proteins Prokaryotic cell wall has pepti doglycan; plant and fungal cells have both cellulose and chitin Domains A relatively overbold concept in biological classification, domain is the highest category Three domains: Archaea (ancient) bacteria (eubacteria) Eukarya Size, bring about and Arrangement Prokaryotes are among the smallest of all organisms Prokaryotes range from 0.5 2.0 µm in diameter and from 1.0 60 µm in aloofness Exception: 1991- Epulopiscium fishelsoni is a bacterial symbiont of sturgeon fish (80 µm in diameter and 600 µm in length Arrangements of Bacteria cocci in pairs (diplococci): Neisseria sp. Cocci in bonds (streptococci): Streptococcus sp. Rods in irons: Lactobacillus sp. Cocci in clusters: staph sp. An Overview of Structure Structurally, bacterial cells consist of the following: Cell membrane, usually surrounded by a cell wall Internal cytoplasm with ribosome s, nuclear region, and in some cases, granul! es and/or vesicles Capsules, flagella, and pili...If you want to get a safe essay, order it on our website: BestEssayCheap.com

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