BLG 144 Chapter Notes - Chapter 28: Pathogenic Bacteria, Extremophile, Bioremediation
Document Summary
Chapter 28 biology study notes: bacteria and archaea. Tiny in size but large in size range (about 0. 5 micro metres cubed to 200x106 micro metres cubed) Use remarkably diverse type of compounds in cellular respiration and fermentation. Even though they are small, they have a relatively simple morphology but their biochemistry is extremely sophisticated. Also play a key role in ecosystems. Photosynthetic bacteria were responsible for the evolution of the oxygen in the atmosphere today. They have the ability to cycle nutrients through terrestrial and aquatic environments. Glycerol bonded to straight chain of fatty acids. Glycerol bonded to branched fatty acid (consists of isoprene) Biological impact of bacteria and archaea: the oldest fossils found so far are 3. 5 billion year old bacteria eukaryotes do not appear in the fossil record until 1. 7 years later. Only 5000 species of bacteria and archaea have been named and described but more do exist.
