BI110 Lecture Notes - Lecture 5: Autotroph, Anoxygenic Photosynthesis, Anaerobic Respiration
Document Summary
Modules 73/74 - origin and early evolution of life. They evolve, which makes it harder to get rid of the virus. They have characteristics, but they don"t have some others, and they require a host cell to do some things. 4 major types of macromolecules important for all life forms: nucleic acids o o o. All except lipids are polymers made up from simpler building blocks and are all mad within cells by complex metabolic pathways. Oparin-haldane hypothesis: organic molecules that form building blocks of life could have been formed in conditions that prevailed on primitive earth (made in the absence of life) o. Stimulated earths early conditions and created several organic molecules including amino acids (done abiotically) When hcn and ch2o were added, lipids, sugars and nucleotide components were generated too. Hydrothermal vents in the dep sea provide an environment favorable to the development of organic molecules. Found single amino acids, single nucleotides in their sample.
