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16 Cards in this Set

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  • Back
smallest living unit in the body
cell
organelle
subunit of a cell
enzyme
catalyst molecule made of protein
metabolism
the sum of all chemical reactions in the cell, and thus in the whole body
plasma membrane
outer boundary of a cell
cytoplasm
makes up the bulk of a cell; surrounds the nucleus
nucleus
lies near center of cell, controls cellular activities
plasmalemma
another name for the plasma membrane
intracellular fluid
fluid within cells
extracellular fluid
fluid outside and between cells
fluid mosaic model of membrane structure
depicts plasma membrane as a double layer (bilayer) of lipid molecules with protein molecules dispersed within it
glycolipids
lipid molecules with sugar groups attached to them ("sugar-fats")
integral proteins
proteins firmly embedded in the plasma membrane of a cell
peripheral proteins
proteins loosely attached to one side of the plasma membrane of a cell and help support it
cell coat
short chains of carbohydrate molecules that attach to integral proteins

also called the glycocalyx
glycocalyx
molecules that attach to integral proteins; name means "sugar covering"

also called the cell coat