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Chapter 7 part 2.

QuestionAnswer
cell mambrane thin, flexible barrier around a cell; regulates what enters and leaves the cell
cell wall strong supporting layer around the cell membrane in plants, algae, and some bacteria
Lipid Bilayer double-layered sheet that forms the core of nearly all cell membranes
concentration the mass of solute in a given volume of solution, or mass/volume
diffusion process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentrated
equalibrium when the concentration of a solute is the same throughout a solution
isotonic when the concentration of two solutions is the same
hypertonic when comparing two solutions, the solution with the greater concentration of solutes
hypotonic when comparing two solutions, the solution with the lesser concentration of solutes
facilitated diffusion movement of specific molecules across cell membranes through protein channels
active transport energy-requiring process that moves material across a cell membrane against a concentration difference
endocytosis process by which a cell takes material into the cell by infolding of the cell membrane
phagocytosis process in which extensions of cytoplasm surround and engulf large particles and take them into the cell
pinocytosis process by which a cell takes in liquid from the surrounding environment
exocytosis process by which a cell releases large amounts of material
cell specialization the process in which cells develop in different ways to perform different tasks
tissues group of similar cells that perform a particular function
organ group of tissues that work together to perform closely related functions
organ system group of organs that work together to perform a specific functions
Created by: 13_arauschenbac
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