BIOL101 Lecture Notes - Transmission Electron Microscopy, Microorganism, Motility
4 Sep 2013
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Lecture notes from dr. ryan martinus on the 10/7/13. Know the defining features of a cell. Know the difference between prokaryotic and eukaryotic cells and plant and animal cells. Know how we study the structure and function of cells. Organism organ system organ tissue cellular chemical/molecular. No nucleus or any membrane- bound organelles. Always have nucleus and other membrane-bound organelles. Linear dna, associated with proteins to form chromatin. Motility by flexible waving cilia or flagellae. Microscopes provide a window into the world of cells. The first light microscopes were used in the 17th century. Magnification is the ratio of an objects image to its real size. Resolution is the ability to discriminate two points close together. Best resolution with a light microscope is about 2. 0um (small bacterium). Maximum magnification achievable with a light microscope is about 1,000 times the size of the actual specimen.
