BIOL 202 Lecture 3: Chapter 3: Concepts and Tools for Studying Microorganisms
7 Feb 2017
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Ribosomal rrna was sequenced: carl woese sequenced ribosomes because every organism has this (it produces proteins). In this class, we will deal with: domain kingdom phylum class order family genus. Classification of organisms requires the sequencing of 16s ribosomal rrna. Family name and genus: first letter capitalized and name written in italics. Species name: small letters and written in italics. Must include the first letter of genus. Prokaryotes; lac cell structure or nucleus (compact one cell). Cell wall is made up of peptidoglycan (nag and nam connected together). Contain 70s ribosomes: humans also have 70s ribosomes in mitochondria. Bacillus refers rod-shaped: bacillus is also used to refer to the genus of a specific bacteria. Found in extreme environments; ph, temperature, salt concentration. Larger than prokaryotes and are more complex. Exhibit complex cellular processes: since dna is their hereditary material, they can be used to model what may happen to humans.
