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2.3: Cell Membrane

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

TermDefinition
cytoplasm Entire contents of the cell inside the plasma membrane, excluding the nucleus.
cytosol Jelly-like substance in which the contents of the cell are suspended.
enzyme Substance, usually a protein, that speeds up (catalyzes) a biochemical reaction.
phospholipid Lipid molecule with a hydrophilic (water-loving) head and two hydrophobic (water-hating) tails; makes up the cell membrane.
plasma membrane Lipid barrier that surrounds the cell; also known as the cell membrane.
semipermeable Allowing only certain materials to pass through; characteristic of the cell membrane.

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Difficulty Level:
At Grade
Grades:
7 , 8
Date Created:
Nov 29, 2012
Last Modified:
Aug 30, 2016
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SCI.LSC.225.L.1