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Cells Pratt

Chapters 7-3 & 7-4

QuestionAnswer
cell membrane the thin flexible barrier that all cells are surrounded by
lipid bilayer the composition of nearly all cel membranes is a double layered sheet called the ______.
concentration the mass of solute in a given volume of solution
facilitated diffusion the cell membrane channels are said to help the diffusion of glucose molecules
active transport the process that moves materials against concentration
endocytosis the process of taking material into the cell by means of pockets of the cell membrane
phagocytosis extensions of cytoplasm surround a particular package within a vacuole
pinocytosis the process by which tiny pockets form along the cell membrane. fill with liquid and pinch off to form vacuoles within the cell
exocytosis the process by which the membrane of the vacuole surrounding the material fuses with the cell membrane forcing the contents out of it
cell specialization the process by which cells throughout an organism can develop in different ways to preform different tasks
tisue in multicellular orgs. similar cells are grouped together by organ systems
organ many groups of tissues
organ system many groups of organs that work together to preform a function
Created by: spratt
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