Bio Kingdoms Presentation Notes

Bio Kingdoms Presentation Notes - Biological Kingdoms...

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Biological Kingdoms (Classification) Class Presentation Notes 1. Archaebacteria Similar to both normal bacteria and the larger eukaryotes (so it’s hard to classify them). Species from the kingdom are called archaeon . Instead of organelles, they keep their stuff in their cytoplasm . Plasmid: a circular loop of DNA in prokaryotes (because they don’t have chromosomes since they don’t have a nucleus). They lack peptidoglycan (Classifying factor) – no nucleus, no peptidoglycan. They have instead a complicated molecule to give the cell structure and toughness; therefore they’re just like jelly-like and not so tough. Cell wall structure: In most archaea the wall is assembled from surface-layer proteins, which form an S-layer. An S-layer is made of a rigid array of protein molecules that cover the outside of the cell like chain mail. This layer provides both chemical and physical protection. Autotrophs. Extremophiles (Live in extreme conditions) 3 shapes of bacteria: cocci cells (spherical), baccilus (oval/rod shaped), vibrio/spirilla (spiral shaped) 3 major groups of Archaebacteria: 1. Methanogens : use methane to get energy. (converts H 2 and CO 2 into methane gas – CH 4 ) 2. Halophiles : salt-loving, make ATP by aerobic pathways. (Combine salt with O) | P a g e Gautham – 5/3/10
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3. Thermophiles: heat-loving; they get electrons from Hydrogen Sulfide (H
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This note was uploaded on 09/06/2011 for the course BIO 201 taught by Professor Mr.bajom during the Spring '09 term at Abu Dhabi University.

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Bio Kingdoms Presentation Notes - Biological Kingdoms...

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