Lecture1 - Lecture 1 Background reading in textbook 5th...

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Lecture 1 3/30/10 Background reading in textbook: 5 th edition: Chapter 1: pages 14-16 and pages 26-32 Chapter 8: pages 510-512 and pages 517-518 Chapter 9: pages 579-592 4 th edition: Chapter 1: pages 16-18 and pages 29-32 Chapter 8: pages 478-487 Chapter 9: pages 547-570 Lecture Outline: Introduction Procaryotes/Eucaryotes Examples of specialized cell types Tools: Microscopy Subcellular fractionation
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Cell Biology – study of relationship of structure to function of cell Limit of eye to resolve is 200 µ m Cell Size Procaryotes: 0.5 – 2 µ m x 1 – 10 µ m (E. coli about 3 x 1 µ m) Eucaryotes: plant cell 10 – 200 µ m diameter animal cell 10 – 30 µ m diameter Organelles: Nuclei 3-8 µ m diameter Mitochondria and chloroplasts 0.5 µ m diameter Supramolecular assemblies: Ribosomes about 30 nm Membranes about 8 nm thick
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Key Historical Events: 1600’s – invention of compound microscope Hooke – pores in cork that he called cells Leeuwenhoek – saw protozoa and bacteria 1838 – Schleiden and Schwann proposed the cell theory that the cell is the simplest common unit of life
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Lecture1 - Lecture 1 Background reading in textbook 5th...

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