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Cell Structure and Function
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Cell Theory
All Living things are made up of cells
Cells are the smallest working units of all living things
All cells come from pre-existing cells through cell division
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CellA cell is the smallest unit that is capable of performing life functions
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Cell MembraneOuter membrane of cell that controls movement in and out of the cell
Double layer
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Cell WallMost commonly found in plant cells & bacteria
Supports & protects cells
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NucleusControls center of the cell
Contains genetic material - DNA
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Nuclear Membrane
Surrounds nucleus
Made of two layers
Openings allow material to enter and leave nucleus
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NucleolusInside nucleus
Contains RNA to build proteins
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CytoplasmGel-like material between the nucleus and cell membrane
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Endoplasmic ReticulumMoves
materials around in cell
Smooth type: lacks ribosomes
Rough type ribosomes embedded in surface
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RibosomesEach cell contains thousands
Make proteins Found on ribosomes & floating throughout the cell
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MitochondriaReleases energy from nutrients
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Golgi BodiesArea that stores and packages chemicals
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LysosomeTransports undigested material to cell membrane for removal
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VacuolesMembrane-bound sacs for storage, digestion, and waste removal
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ChloroplastUsually found in plant cells
Contains green chlorophyll
Where photosynthesis takes place
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CentrioleFound in most animal cells
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Any Questions?
References: http://science-class.net/