BIOL130 Lecture Notes - Cellular Respiration, Endoplasmic Reticulum, Mycoplasma
5 Oct 2013
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There are 2 classes of cells: prokaryotes no-membrane bound organelles, no nucleus, eukaryotes membrane-bound organelles; has nucleus, has endomembrane system. He looked at slices of cork (cellula) Antoni van leeuwenhoek improved microscope s lenses: worked w/ glass, 1st to observe single-celled organisms (animalcules) in a variety of places: Improved the lens quality to enable a magnification of approx. 300x: protists in pond water, bacteria from own mouth, blood cells, banded pattern in muscle cells, sperm, known as the father of microbiology . Due to limited resolving power and an emphasis on description rather than explanation caused a stall of progress. In 1830s the compound microscope was invented, it improved magnification & resolution (enabled to see microscopic materials under 1 m. Robert brown discovered plant cells contained a round structure the nucleus. Matthias schleiden discovered plant tissue are made up of cells. Theodor schwann observed there were structural similarities b/w plants & animals: formulated cell theory .
