WIS 2552 Lecture Notes - Lecture 1: Proteinoid, Stanley Miller, Alexander Oparin

• School: University of Florida
• Department: Wildlife Ecology and Conservation
• Course: WIS 2552
• Professor: Michael P Moulton

Document Summary

How did life begin, before 1864, many believed life came from spontaneous generation, people believed mice and rats came from moist grain, francesco reddy placed meat in covered and uncovered vials. If spontaneous generation was real, all vials would have produced maggots (not just uncovered ones) In 1864, pasteur put the spotaneous generation model once and for all. He put water in flasks, and boiled it to kill bacteria. Also energy from sun, lightning, etc: simple organic molecules could have formed from these raw materials and collected in soups in bodies of water. They later could have formed more complex organisms and began life. Met with disapproval as it had been not long after pasteur disproved spontaneous generation. In 1950s, stanley miller replicated conditions on primitive earth. Combined ammonia, methane, and water, (to represent ocean) and let mixture circulate into air. + dna -> simple prokaryotic cells (bacterias: stage is set for autotrophs and heterotrophs.