BIOL130 Study Guide - Final Guide: Digestion, Unit, Arabidopsis Thaliana
2 Apr 2013
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Viewed slices of cork cellula (little rooms) first microscope. Nearly 300x magnification became possible first to observe: single-celled organisms. Progress stalled for a century or so limited resolving power: emphasis on description rather than explanation. 1830s compound microscope improved magnification and resolution: allowed visualization of objects less than 1 um. Noticed that every plant cell contained a round structure. All plant tissues are composed of cells. Embryonic plant always arose from a single cell. Cell theory formulated by schwann similar observations in animals recognition of structural similarities between plants and animals. All organisms consist of one or more cells. All cells arise only from pre-existing cells the cell is the basic unit of structure for all organisms. Use inductive reasoning to develop tentative explanation (hypothesis) Make further observations or design and carry out controlled experiments to test your hypothesis interpret your results to see if they support your hypothesis. Tem (transmission) white background, slice, looking within.
