HUBS1404 Lecture Notes - Lecture 6: Microbiology, Glucan, Carl Linnaeus
30 Jul 2018
School
Department
Course
Professor
Document Summary
Microorganisms defined as organisms or agents that are too small to be seen by the naked eye. Includes larger organisms that have microscopic stages of life. Bacteria (the oldest and most abundant form of life) There have been many refinements in the classification of living organisms. Studies on ribosomal rna led to the proposition that all organisms should be grouped into one of three domains (carl woese) Contains the kingdoms (protista, fungi, plants and animals) It is believed that the eucarya is branched out from the archaea. Distinguished on the basis of sub-cellular structures (structures between and within the cell) Medically important eukaryotes included the fungi, protozoa and helminths. Simple, unicellular structure usually bounded by a cell wall. Huge variation in morphology, physiology, size, metabolism, etc. Plasma membrane underlies cell wall and is semi-permeable. Dna isn"t bound to nucleus like animal cells. Plasmids are how bacteria transfers traits from one bacteria to another.
