EEMB 3 Study Guide - Spring 2019, Comprehensive Final Exam Notes - Adenosine Triphosphate, Old Testament, Earth
8 May 2019
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Document Summary
Microbes are responsible for the oxygen we breathe. Microbes acquire most of their nutrients through active exchange. Early earth: no oxygen, hot, poisonous gas, only water vapor. Earth ocean: cooled asteroids and comets from water microfossils. Gaia: earth = living entity and self-regulating *lovelock (discovered chemical disequilibrium. Chemistry of life (water): cohesive with surface tension, high specific heat, ice floats, versatile solvent. Cell theory- membranes, aqueous systems, biosynthesis (monomer to macromolecule), info carriers (dna and rna) and translation apparatus, energy flow and storage (atp), catalysts. Vital force view- independent and different than forces found in chemistry and physics. Mechanistic view- life is chemically based with a unique arrangement. Spontaneous generation: production of life from abiotic substrate. Francisco redi: experimental biology; meats and maggots = life generates life. Louis pasteur: airborne microbes = vital forces; disproved spontaneous generation. Panspermia: life didn"t originate on earth- found meteorites have the building blocks of life. Extraterrestrial input hypothesis: organic matter and water via collision.
