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Homework Topic 1: Understand how life arose on the Earth Topic 2 Determine the general principles governing the organization of matter into living systems Some authors to cite: Orgel, Eschenmoser, Wachtershauser, Cairns-Smith, Deamer, Dworkin, Schopf.
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In the books Bennett: Ch. 3 and Ch. 5 Goldsmith: Ch. 7 and Ch. 8
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Pillars of Life
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Program Genetic Blueprint->DNA/RNA like molecule Some set or plan by which a code for the construction of an organism is passed from one generation to the next.
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Improvisation Mutation- The occurrence of defects and natural selection allows the population to adapt to different and challenging environments
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Compartmentalization You have to keep your insides in and the outside out Formation of cell membranes/walls Amphiphilic molecules
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Energy Some basic fuel –Sun –Food (glucose) –Chemoautotrophs –Chemolithotrophs –etc.
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Regeneration If you burn energy you must have a system to re-coup it New proteins, new DNA, etc.
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Adaptability A behavior response to a malignant stimulus –You put your hand in the fire, it hurts, you take it out,
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Seclusion Biochemistry and the chemicals in the organism all work for specific ends without precluding each other. Many rxns occurs at the same time without precluding each other.
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DNA
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Tree of Life rRNA
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Endosymbiosis/Organelles
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Origin of Life LUCA-Last Universal Common Ancestor Panspermia Miller-Urey Experiment RNA world Hypothesis and Rybozymes Life needs three things to get started: 1)Organic molecules 2)Energy 3)Aqueous medium (H 2 0)
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Panspermia
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Miller-Urey Experiment
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Clay Theory
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