BIOB10H3 Chapter Notes - Chapter 8: Green Fluorescent Protein, Endoplasmic Reticulum, Integral Membrane Protein

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15 Nov 2013
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Cytoplasm of a cell is divided into organelles, they are dynamic compartments. Endoplasmic reticulum, golgi complex, endosomes, lysosomes and vacuoles all part of endomembrane system. Organelles of endomembrane systems is a network in which materials are shuttled back and forth. Materials are shuttled between organelles from golgi to plasma membrane. Transport vesicles move through cytoplasm in a directed manner, often pulled by motor proteins on tracks formed by microtubules. At destinations, they fuse with membrane of acceptor compartment. Biosynthetic pathway proteins are synthesized in the endoplasmic reticulum, modified, through the. Secretory pathway as proteins are synthesized and secreted. Constitutive secretion materials are transported in secretory vesicles from their sites of synthesis and discharged into the extracellular space. Regulated secretion materials are stored as membrane bound packages and discharged only in response to an appropriate stimulus. Proteins, lipids and complex polysaccharides are transported through cell along secretory pathway.

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