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BIOL101 Chapter 6 - BIOL 101 Lecture Guide for Chapter 6...

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BIOL 101 Lecture Guide for Chapter 6 Cells I.000 Discovery Cytology – Robert Hooke 1665 discovery of cells from slice of cork Anton van Leeuwenhoek Designed a hand held microscope; first to observe and report ‘animalcules’ in 1670’s Electron Microscopy Identification of cell parts beginning 1950’s II. Cell Comparison All cells Plasma membrane Cytosol or cytoplasm Chromosome – contains genes composed of DNA Ribosomes Prokaryote Nucleoid area with DNA Cellular reproduction by binary fission Eukaryote Nucleus Cytoplasm includes membrane bound organelles Cellular reproduction by mitosis Prokaryotic Cells may also have o Cell wall o Capsule o Pili o Cilia o Flagella Eukaryotic cells may have Cytoskeleton Cytosol Golgi complex Mitochondrion - Nucleolus - Nucleus
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Ribosomes RER SER Vesicles III. Eucaryote comparison Plant Cells Cell wall limit uptake of water; protection, location:______________ Centrosome Microtubules initiated for cell division but does not centrioles Central vacuole
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