BIOL 101 Lecture Notes - Lecture 13: Pathogenic Bacteria, Rna Virus, Deinococcus
Document Summary
All living things on earth classifies into one of three domains. Grouped together because small not because share a recent common ancestor. *break stuff out (digestive system ) and engulf food. Microbes can live almost anywhere and eat almost everything. Human intestine ( based on using enzymes from microbes ) Fix n2 ( critical component in building a living things ) Biomass all microbial >> biomass of all life-forms combines ( important component for decomposition) Classified by their shape,structure and type of metabolism. Bacteria carry dna in 2 circular molecules. Virus to bacterium ( inject their dna/rna into the cell ) Discovered in canned food that used radiation to sterilize. Can withstand 3,000x more radiation than human can. Possibly useful at nuclear waste sites -consumes nuclear waste and transforms into more disposable derivatives. One of the few forms in north pole ( extreme dehydration. 300 species of resident bacteria in mouth. 500-1000 species of resident in large intestine for resources.
