lecture 5

lecture 5 - Ch. 6 17:47 Animal cell Endomembrane system ER...

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Ch. 6 17:47 Animal cell Endomembrane system ER Rough Smooth Golgi apparatus Centrosome – involved with cell division (mitosis and meiosis). Not in plant cells Peroxisome Microvilli – increase surface area of cell, help to increase rate of uptake from extracellular space Cytoskeleton Microfilaments Intermediate filaments Microtubules Flagellum /cilia – cell motility Lysosome Mitochondrion Plasma membrane Ribosomes Nucleus Chromatin
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Nucleolus Nuclear envelope Plant cell (components not in animal cell) Central vacuole Tonoplast Cell wall Plasmodesmata Chloroplast Cell organelles The importance of compartmentalization within the dcell – the physical separation of cell functions Allows different chemical environments to exist within the cell Ex) pH – allows enzymes to function efficiently Ex) Ionic gradients – generation of ATP in mitochondria 5 processes information, storage, processing, and execution: nucleus protein, carbohydrate, and lipid biosynthesis – endomembrane system structural and transport functions – cytoskeleton, plasma barrier Plasma membrane Lipid bilayer
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Selectively permeable Constant internal environment Information is received from cellular environment Nucleus Largest organelle Contains DNA Chromosomes – very tightly coiled Chromatins – available parts of DNA (unraveled) so that enzymes can read them
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This note was uploaded on 03/14/2012 for the course BISC 13141 taught by Professor Williammcclure during the Spring '10 term at USC.

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lecture 5 - Ch. 6 17:47 Animal cell Endomembrane system ER...

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