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Unit: Cell Membranes and Transport (Ch. 7, section 3) “I can…” _____ describe the structure and function of cell membranes and their components _____ explain why diffusion and osmosis are necessary for cells to survive. _____ differentiate between endocytosis and exocytosis. _____ compare and contrast the characteristics of simple (passive) diffusion, facilitated diffusion, and active transport. _____ predict what will happen to plant and animal cells when they are placed in isotonic, hypotonic, and hypertonic solutions. _____ determine the effects of a variable (i.e., temperature or concentration) on the rate of diffusion. Essential Vocabulary /Concepts: active transport isotonic bulk transport osmosis cholesterol phagocytosis concentration phospholipid bilayer diffusion phagocytosis endocytosis pinocytosis exocytosis protein carrier facilitated diffusion protein channel hypertonic simple (passive) diffusion hypotonic