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cell transport
Term | Definition |
---|---|
unicellular organism | an organism made of one cell |
Multicellular organism | an organism made of many cells |
selective permeability | cell membranes allow some materials in & out of cell |
prokaryote | an organism with no membrane bound organelles--no nucleus, no mitochondria |
eukaryote | an organism with membrane bound organelles--yes nucleus, yes mitochondria |
active transport | transport when energy is used. |
endocytosis (enter) | moving large molecule in the cell with energy |
exocytosis (exit) | moving large molecule out of the cell with energy. |
passive transport | energy is not needed to move materials. |
diffusion | movement of molecule to where they are not needed. |
osmosis | is the movement across the cell membrane. |