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Ch. 3 Cells and Cell Stucture

Anton LeewenhoekHe invented the first light microscope
Robert HookeFirst to discover cells
Theodor SchwannHe discovered cells in animals
Robert BrownHe discovered an object near the center now called the nucleus
Matthias SchleidenHe suggested that the nucleus was involved in cell reproduction
Rudolf VichowHe suggested that animal and plant cells only reproduce by cell division of preexisting cells
OsmosisDiffusion of water
Passive TransportMovement of the cell membrane from regions of high concentration to low cocentration; does not expel energy
Active transportMovement of a substance against a cocentration difference; uses energy
EndocytosisWhen a cell engulfs a particle entirely
PhagocytosisWhen a cell eats or obtains energy
PinocytosisWhen a cell drinks something
ExocytosisWhen a cell release excrements
ProkaryoticWhen a cell does not a nucleus; a bacteria cell for instance
EukaryoticWhen a cell has a nucleus; all cells except for bacteria
CytoplasmFluid of the cell that contains the organelles
RibosomesThey are made o RNA and protein
Endoplamic ReticulumThe transportation network; delivers protein to the golgi apparatus
Golgi ApparatusSpecial enzymes attach carbohydrates of lipids to protein
LysosomeSac-like membrane filled with chemicals and enzymes; cell recycler
CytoskeletonFramework and transportation rails;microtubules, microfilament, cellmovent of cilla, and flagella
VacuolesStorage sacs of the cells
MitochondrionProduces energy from a chemical fueland oxygen
ChloroplastHarvests the suns energy and changes it to a chemical energy
Electron MicroscopeUse a beam of electrons instead of light to examine a sample


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