Lecture1-1

Lecture1-1 - biochemical processes: 2- Nucleus-...

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Lecture 1: Introduction to Cell Biology History of Cells Some key figures & dates in the history of cell biology: - 1600s - invention of microscope - Hooke 1665 - Leeuwenhoek 1673 - Brown 1833 - Schleiden and Schwann 1838 - Virchow (pictured) 1855 - Flemming 1879 "Omnis cellula e cellula" / Cell unity and diversity Unity: The cell is the basic unit of life. Anything less than a cell cannot be considered living. All cells share certain features. Diversity: Differences between Procaryotic and Eucaryotic cells Differences between Plant and Animal Cells Parts of a Eukaryotic cell Plasma membrane Membrane-bound organelles compartmentalize functions and
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Unformatted text preview: biochemical processes: 2- Nucleus- Mitochondria- Endoplasmic reticulum (ER)- Golgi apparatus- Lysosomes- Peroxisomes Cytosol Ribosomes Cytoskeleton : 3 classes of filamentous polymers (microtubules, microfilaments, intermediate filaments) Centrosome Intercellular junctions 3 Mitochondria and Chloroplasts are believed to be derived from symbiotic bacteria (endosymbiont theory). Types of cells (hundreds) Epithelial cells Muscle cells Connective tissue Neurons and glial cells Blood cells Germ cells - sperm and eggs Sensory cells Cell shape is related to function....
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This note was uploaded on 05/26/2011 for the course BIO 205 taught by Professor Reed during the Spring '11 term at UNC.

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Lecture1-1 - biochemical processes: 2- Nucleus-...

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