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Ch 3 Cell Structure and Function 3.1
McDougal-Littell Biology Text
basic unit of life
* all organisms are made of cells
* all existing cells are produced by other living cells
* the cell is the basic unit of life
jelly-like substance that contains molecular building blocks
specialized structures within cytoplasm that perform distinct processes
no nucleus or bound organelles; DNA is found throughout cytoplasm; single-celled organisms
has nucleus and bound organelles; DNA is found within nucleus; single or multi-celled organisms