Osmosis - Movement of water along the concentration gradient., Diffusion - The movement of molecules (in general) from high to low concentration., Passive transport - The type of diffusion that does not require energy., Active transport - The type of movement of molecules that requires ATP., Cell membrane - Sometimes called a "phospholipid bilayer", What is this called? - Phospholipid molecule, Phosphate head in the membrane is described as......... - Hydrophyllic, The lipid tails in the cell membrane is described as...... - Hydrophobic, Concentration gradient - A difference in concentration between two barriers., Selectively permeable - Describes how the membrane lets some molecules in & out, but not all molecules., diffusion, plasma membrane,

Cell Membrane & Transport - Vocabulary

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