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Chapter 3 Bio Vocab

TermDefinition
Plasma Membrane A semipermeable membrane that surrounds all cells
Ribosome A two-part structure in all cells where proteins are synthesized
Pathogen An organism that causes disease
Flagellum A slender protein structure used by many cells to move around
Diffusion Movement of a solute from an area of high concentration to an area of low concentration
Osmosis Movement of a solvent across a semipermeable membrane from an area where the solute concentration is low to an area where the solute concentration is high
Endocytosis The process by which cells take in a substance by surrounding it with the plasma membrane and making a vesicle that holds the substance
Exocytosis The process by which a substance in a vesicle is released into the cell's environment by fusing with the plasma membrane
Aerobes Organisms that use oxygen in the cellular respiration
Anaerobes Organisms that do not use oxygen in their cellular respiration
Endosymbiosis The idea that eukaryotes arose as a result of one prokaryote engulfing others
Created by: user-1880188
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