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Cell Notes
Cell structures and functions
Structure | Function |
---|---|
Cell Wall | ◊Animal cells don't have one ◊Plants: made of cellulose ◊Gives strength structure and rigidity to plant thru Turgor Pressure |
Cell Membrane | ◊Outside covering ◊Determines what goes in/out of cell ◊Flexible but supports cells |
Vacuole | ◊Storage unit in cells that hold water ◊Large in plants, small in animal cells |
Nucleus | ◊Control center of cell ◊Houses DNA ◊Controls cell growth and makes ribosome |
Mitochondria | ◊"Power House of the cell" ◊Produces energy (breaks down glucose) ◊C6H12O6 + O2 + CO2 + H2O + Energy |
Cytoplasm | ◊Gelatinous, semi-transparent fluid that fills the cells ◊Organelles are suspended in cytoplasm |
Chloroplast | ◊Only Found in Plants ◊Site of Photosynthesis: captures radiant energy and converts it to chemical energy ( C6H12O6) AKA- glucose ◊Has chlorophyll- green pigment that absorbs light |
Prokaryote | ◊A single-celled organism with NO Nucleus ◊DOES have DNA ◊No other specialized organelles ◊Eubacteria and Archaebacteria |
Eukaryote | ◊Has a Nucleus that contains DNA ◊Single or multicellular ◊Has membrane bound organelles ◊Includes all living organisms other than the eubacteria and archaebacteria |
Cell Theory | ◊All living organisms are composed of one or more cells ◊The cell is the most basic unit of life ◊All cells arise form pre-existing, living cells |
Lysosome | ◊Contains digestive enzymes to break things down in cell |
Rough Endoplasmic Reticulum | ◊Covered in ribosomes, stores proteins |
Smooth Endoplasmic Reticulum | ◊(No ribosomes) transports cell products |
Ribosome | ◊Site of Protein Synthesis |
Golgi Body | ◊Packages cell products for transport (Like UPS) |