[BIO3124] - Final Exam Guide - Ultimate 130 pages long Study Guide!
29 Nov 2016
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300 bc aristotle: belief that living creature are created spontaneously from non-living matter. You just need a combo of ingredients o. Flooding of fields in the spring results in pools of water that generates frogs. Crops stored under damp conditions rot and generate mice. This belief remains unchallenged for over 2000 yrs. Hypothesis: no matter can be created or destroyed, all that exists is the result of transformations. Life occurs by transforming appropriate ingredients spontaneous generation o. 17th century jan baptista van helmont first to carry out experiments: recipe: After 21 days the smell changes and the ferment from the underwear reacts with wheat transforming into adult mice. No more wheat - so wheat transformed into mice. 2 ways of generating life unlike aristotle. o. The first to challenge the theory of spontaneous generation. Did van helmont"s recipe but put a sheet to stop access to life. Meat eventually started to rot anyway - bacteria grew on it.
