Chapter 3 PROTEIN STRUCTURE AND FUNCTION

Chapter 3 PROTEIN STRUCTURE AND FUNCTION - Chapter3PROTEIN

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One of the most important molecules in living things. Chapter 3  PROTEIN  STRUCTURE AND FUNCTION
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Summary Complex molecules – where did they come from? Theories Miller/Urey Experiment Complex molecules in living organisms Proteins Structure Functions Enzymes
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Complex Molecules Where did they come from? Outer space? Meteorites contain complex molecules Here on Earth? Oparin and Haldane – chemical evolution; simple molecules existing on earth gradually combined to form more an more complex molecules with the help of energy from the sun.
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Miller/Urey Experiment Mimicking early Earth Hot oceans - flask with boiling water connected to… Earth’s early atmosphere - flask with gases. Lightning - energy from sparks. Condensation of products from gas flask (rain) fed back into the “ocean” flask.
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Miller/Urey Experiment After weeks, the “ocean” contained complex molecules including amino acids. “Ocean” with complex molecules was called “prebiotic soup” by Oparin. Many scientists have confirmed these results.
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Complex Molecules Black smokers - ?present day examples Deep in the ocean, heated gases are emitted. Molecules of gas unite to form more complex molecules.
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This note was uploaded on 09/08/2011 for the course BIOL 1403 taught by Professor Dini during the Fall '09 term at Texas Tech.

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Chapter 3 PROTEIN STRUCTURE AND FUNCTION - Chapter3PROTEIN

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