BI110 Chapter Notes - Chapter 73-74: Autotroph, Thomas Cech, Polymerization
Document Summary
Exhibit homeostasis (internal conditions maintain despite external influences) Display order, have specific structure, reproduce, and evolve. Difficult to treat constantly evolving to fight off host cells attacking back. 4 major types of macromolecules important for all forms of life. All except lipids are polymers made up from simpler building blocks, and all are made within cells by complex metabolic pathways. Organic molecules that form building blocks of life could have been formed in conditions that prevailed on primitive earth. (absence of life life) H2s, co2, nh3, ch4, h2o (vapour) allow for synthesis of more complex molecules. Simulated earth"s early conditions and created several organic molecules including amino. When hcn and ch2o were added, lipids, sugars and nucleotide components were generated too. Important molecules crucial to life can be produced abiotically. Hydrothermal vents in deep sea provide an environment favourable to the development of organic molecules. Key macromolecules of life, such as proteins and nucleic acids, are polymers that were.
