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Unformatted text preview: new life forms – Complexity, mul9cellularity – Cambrian Explosion Jumping back to the beginning: 4 billion years ago: Earth started to cool, crust started to solidify (but s9ll many volcanoes). Atmosphere: Very lille oxygen No ozone layer, lots of UV radia9on Life arose ‐ how? But life did once arise on Earth http://www.whatischemistry.unina.it/merlinog4.jpg • What is life? – ReplicaAon • Transmission of informaAon p 40: Box 3.1 – Catalysis • TransformaAon of energy and conversion to structure http://www.mdc-berlin.de/en/research/ research_teams/intracellular_proteolysis/ Research/UPS.png The molecular basis...
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- Spring '08