HTHSCI 1H06 Lecture Notes - Robert Hooke, Glycolipid, Integument
22 Nov 2012
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Document Summary
Robert hooke was the first to identify cells in 1665. Cells group together to form tissues, tissues work together to form organs. Organs work together to form organ systems all forming the organism. Cells have the maximum surface area for a given volume allowing the most oxygen and nutrients to enter the cell. Phospholipid bilayer: membrane is made of an amphipathic molecule which has both polar and non-polar areas allowing both water soluble and fat soluble molecules can enter the cell. Rest is proteins embedded in the bilayer: ion channels, transporters, receptors, enzymes, antibodies, linkers. Assemblies of different types of glycolipids that coalesce with proteins forming platforms that function in membrane signaling. These proteins form an intracellular scaffold giving the cell its shape. This scaffold also organize the flow of cellular information via intracellular signaling. Kinesin walk along the microtubules: they shuttle mitochondrion as well as vesicles. Processes proteins and other molecules for excretion from the cell.
