Big Bang 13 8 BYA 10 17 Lecture summary Origin of Life 7 Characteristics of Life 1 Cellular organization 2 Ordered Complexity 3 Sensitivity response to stimuli 4 Growth development reproduction 5 Energy utilization 6 Homeostasis 7 Evolutionary adaptation Earth is uniquely suited for life Hypothesis on the origin 1 Devine creation 2 3 Originated on Earth Spore theory panserma a Spontaneous Generation 1 Right distance from sun temp 2 Right size and density perfect gravity for our atmosphere Inorganic molecules Primary Abiogenesis 1 2 Organic molecules CHEMICAL EVOLUTION 3 4 Reproducing molecules 5 Cells BIOLOGICAL EVOLUTION 6 Multicellular organisms Interacting chem systems Molecules have been detected in space relatively easy to make organic molecules from inorganic Polymerization experiments Can be done by Evaporation freezing heating Simple sugars complex carbs Amino Acids Proteins Interacting chemical systems Coacervates colloidal drops of organic materials in solution Properties of coacervates feeding size of small cell membrane cell division Reproduction Some RNA s can stimulate the formation of more RNA
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