[BSC 120] - Midterm Exam Guide - Comprehensive Notes for the exam (22 pages long!)

• School: University of Alabama
• Department: Biological Sciences
• Course: BSC 120
• Professor: Martha Powell

Document Summary

Chapter 25 the history of life on earth. Francesco redi (1668: use of controlled experiment, spontaneous generation of life disproved this theory. Correlation is not causation: took meat and jars to show the presence or absence of maggots. Louis pasteur (1862: evidence against contemporary spontaneous generation, bacteria in swan neck flask. Three scenarios for the origin of life: different ideas that are testable through experimental simulations, scenario 1. According to one hypothesis, the first organisms were products of chemical evolution in 4 stages. Stage 1: abiotic synthesis of organic monomers living organisms. Most extensive studied by scientists in the laboratory. Vitalism: organic molecules once thought to be produced only by: but, in 1828 fredrich wohler synthesized urea (cid:4666)(cid:1840)2(cid:4667)2(cid:1841) (from lead cyanate and ammonia) So how can one test the oparin-haldane hypothesis: simulation of the conditions of early earth will allow the formation of biological compounds. Ta(cid:374)l(cid:455) (cid:373)iller a(cid:374)d harold ure(cid:455)"s (cid:1005)(cid:1013)(cid:1009)(cid:1007) e(cid:454)peri(cid:373)e(cid:374)t u(cid:374)i(cid:448)ersit(cid:455) of.