PSYCH 3CB3 Lecture Notes - Scanning Electron Microscope, Cell Culture, Extremophile
9 Apr 2013
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Robert hooke (1665: examined cork under microscope, cork is made up of cells . Anton van leeuwenhoek (1674) father of cell biology: examined pond water under microscope, animalcules name he gave to microbes. Basic properties of cells: cells are highly complex and organized, cells possess a genetic program and the means to use it. Genes proteins: cells are capable of producing more of themselves. Ex: mitosis and meiosis: cells can acquire and utilize energy. Sun carbohydrates atp: cells carry out chemical reactions. Metabolism sum total of chemical reactions in a cell. Enzymes aid in cellular metabolic processes (use atp: cells engage in mechanical activities. Transport materials inside the cell (intracellular transport) Whole cells move: cells respond to stimuli. Use cell surface proteins for this receptors : cells can self-regulate - for example: cells have dna repair enzymes cells can determine when they should stop or start dividing, cells evolve.
