BCHM 658 Lecture Notes - Lecture 14: Endoplasmic Reticulum, Cell Junction, Oxidative Phosphorylation

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15 Jul 2016
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Phase 1 tutorial 1 cell structure and organelles. Question 1 diagrammatic picture of idealised cell showing nucleus, mitochondria etc students asked to identify 10 structures / organelles. Summarise the main function(s) of the organelles/structures/compartments listed below as a - j: F rough endoplasmic reticulum synthesis of proteins for export outside the cell eg hormones, digestive enzymes. G smooth endoplasmic reticulum site of enzymes involved in cholesterol synthesis, steroid metabolism and drug detoxification. H golgi apparatus modification and packaging of proteins for export or for targeting to specific subcellular compartments. I cell junction (desmosome type) act as spot welding" junctions holding cells together to form specific layers. J cytosol aqueous solution of defined ph and ionic composition and in which metabolic reactions of glycolysis and glycogen synthesis occur. Resolution in light microscope is determined by wavelength of visible light (0. 5 m) and the quality of the lens. Visible structures would include the nucleus (1. 5-2 m microvilli as a.

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