Biology 1001A Lecture Notes - Microtubule, Actin, Tubulin
30 Apr 2012
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Document Summary
Fatty acids are non-polar and insoluble in water. Some fatty acids contain kinks due to double bonds. Kinks cause the fatty acids not to pack well and less dense. These molecules tend to be liquid at room temperature. Clicker question: desaturases are enzymes that introduce double bonds into fatty acid chains. If a bacterium moves from warmer to cooler water, what will happen to desaturase activity: increase, decrease, stay the same. Not all enzymes work better as the temperature rises. Bacteria and archaea are both prokaryotic slide: the picture of the cell was taken by an electron microscope, more specifically transmission electron micrograph. It was made by taking a small slice of the cell, staining the cell and shooting electrons through it. Internal membranous organelles were the result of endosymbiotic events. Some of the membranous organelles in a eukaryote used to be free-living bacteria.
