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Unit 4 Vocabulary

Crossword hints:
A property of cell membranes that allows some substances to pass through, while others cannot., ovement of substances through a cell membrane DOES NOT require energy (diffusion and osmosis), A flexible boundary that controls the movement of substances into and out of the cell, Movement of molecules from an area of HIGH concentration to an area of LOW concentration., Movement of substances through the cell membrane that REQUIRES ENERGY. Moving things from a LOW concentration to a HIGH concentration., Diffusion of WATER molecules through a semipermeable membrane from HIGH concentration to Low, Process by which organisms maintain a relatively stable internal environment.,

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