http://koning.ecsu.ctstateu.edu/cell/cell.html. a cell is the smallest unit that is capable of...
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Cell Structure & Function
http://koning.ecsu.ctstateu.edu/cell/cell.html
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Definition of Cell
A cell is the smallest unit that is capable of performing life functions.
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Cell TheoryAll living things are made up of cells. Cells are the smallest working units of all
living things. All cells come from preexisting cells through
cell division.
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“TYPICAL” ANIMAL CELL
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“TYPICAL” PLANT CELL
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Cell PartsOrganelles
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Surrounding the Cell
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CELL MEMBRANE Outer layer that controls
movement of materials into and out of cell
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CELL WALLMost commonly
found in plant cells and bacteria
PLANT CELL
Provide Protection and Support
BACTERIA CELL
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Inside the Cell
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Nucleus Directs cell activitiesContains genetic material – chromosomes,
DNA
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CytoplasmGel-like mixture makes up inside of cellHolds other organelles in cellSurrounded by cell membrane
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MitochondriaFunctions in energy production through
chemical reactions
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VACUOLESMembrane-bound sacs for storage,
digestion, and waste removalContains water solutionHelp plants maintain shape
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CHLOROPLASTUsually found in plant
cellsContains green
chlorophyllWhere photosynthesis
takes place
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Chloroplast Found in AutotrophsAutotrophic organisms make their own food
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He’s Green. Is he an Autotroph?
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HETEROTROPHSOrganisms that do not make their own foodRely on other organisms
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Examples of CellsAmoeba Proteus
Plant Stem
Red Blood Cell
Nerve Cell
Bacteria
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Two Types of Cells•Prokaryotic•Eukaryotic
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ProkaryoticDo not have
structures surrounded by membranes
Few internal structures
One-celled, simple organisms, Bacteria
http://library.thinkquest.org/C004535/prokaryotic_cells.html
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EukaryoticContain organelles surrounded by
membranesMost living organisms (you!)Plant Animal
http://library.thinkquest.org/C004535/eukaryotic_cells.html
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AUGUST 30, 2013In you journal under the journal
guidelines, write today’s date & Cell Review
Draw & label only the type of Cell