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Cell Membrane & Transport

Across
Solutions that are in equilibrium
Cell membranes are ___, allowing some substances to go through.
Diffusion of water through a semipermeable membrane
Universal solvent forming an aqueous solution with dissolved substances.
A solution that has less solutes that the other solution.
Phospholipids have water-loving or ___ heads
Down
Movement of substances from areas of great concentration to lesser concentration
Turns purple in the presence of iodine
Semipermeable barrier surrounding cells and cell structures]
Chemical substance that changes color in the presence of certain substances
Indicator for starch that turns purple in its presence
_______ bilayer: one of the main structures found in the cell membrane that surrounds the cell
Solution that has more solutes than the other solution
Tails of phospholipids are ____, or fear water, and turn inwards away from the cell.
_____ could not pass through the dialysis tubing because its molecules are too large to go through.
Iodine moved from the cup ___ the dialysis tube; the contents of the tube turned purple.