BIOL-K - Biology BIOL-K 103 Lecture Notes - Lecture 1: Microparticle, Hydrogen Sulfide, Ultraviolet
18 Jan 2020
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Chapter 21: the origin and evolutionary history of. Objective 1: describe the formation of organic molecules under the conditions believed to have existed on early earth. This will include: describing examples of reactive surfaces comparing and contrasting the prebiotic soup and iron-sulfur world hypotheses (knowledge/comprehension) Gases present in primitive atmosphere carbon dioxide (co2) water vapor (h2o) carbon monoxide (co) nitrogen (n2) ammonia (nh3) [limited] hydrogen sulfide (h2s) methane (ch4) [limited] Little or no free oxygen so atmosphere was reducing environment. Energy source was lightning, cosmic and ultraviolet radiation. Chemical building blocks including water, dissolved inorganic molecules and atmospheric gases were present. Objective 2: describe the miller-urey experimental model and explain how it could be used to investigate the synthesis of organic molecules. This will include: understanding the prebiotic soup hypothesis, how the experiment was conducted, and the results obtained (knowledge/comprehension/application) Organic molecules formed near earth"s surface (water) sea of organic soup .
