Lecture_1_bio_intro

Transla7on underlying their crea7on is 4 promoter

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Unformatted text preview: Consist of single- cell microorganisms, which have no cell nucleus or any other membrane- bound organelles within their cells. Prokaryote cells. •  Previously, they were grouped with bacteria and named “archaebacteria” but this is considered outdated. •  Ini7ally, archaea were viewed as extremophiles that lived in harsh environments (i.e. hot springs, salt lakes) but we now know that is not true. They are found in a broad range of habitats, including soils, oceans, marshlands and the human colon and navel (i.e. HMP project). 5 8/26/13 Differences Archaea and Eubacteria 1.  The base "thymine" is not present in tRNA of archaea. 2.  The first amino acid is methionine in archaea. 3.  Sensi7vity to many an7bio7cs, such as kanamycin, , rifampicin, and anisomycin are different when comparing the two cell types. Also, archaea are sensi7ve to the diptheria toxin (bacteria are not). 4.  Promoter structures are different. 5.  Structure of their ATPases are different. 6.  Methanogenesis is unique to archaea. 7.  Some archaea are photosynthe7c, and it is strictly non- chlorophyll based. Photosynthesis in bacteria (and eukaryotes) is strictly chlorophyll based. Fungi •  Most fungi are mul7- cell and consist of many complex cells. Eukaryote cells. •  Fungi are organisms that biologists once confused with plants, however, unlike plants, fungi cannot make their own food. Most obtain their food from parts of plants that are decaying in the soil. •  Examples: Mushrooms, mold, mildew Differences Archaea and Eubacteria 1.  The base "thymine" is not present in tRNA of archaea. 2.  The first amino acid...
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This note was uploaded on 02/10/2014 for the course CS 425 taught by Professor Asaben-hur during the Fall '13 term at Colorado State.

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