1) When a cell uses energy to transport ions AGAINST the concentration gradient _____ _____ is used. a) active transport b) passive transport c) facilitated diffusion d) osmosis 2) A solution in which the salt concentration is higher outside the cell than the salt concentration inside the cell is called ___. a) hypotonic b) isotonic c) hypertonic 3) Which method of transport moves substances in or out of the cell that requires energy? a) passive transport b) active transport c) osmosis d) diffusion 4) A solution in which the salt concentration is lower outside of the cell than the salt concentration inside the cell is called __. a) hypotonic b) isotonic c) hypertonic 5) When a cell needs to get rid of waste products and push them out of the cell, which term best describes the process by which cells release substances from the cell? a) exocytosis b) endocytosis c) pinocytosis d) diffusion 6) When the concentration molecules on both sides of a membrane is the SAME, the solution is ___. a) hypotonic b) isotonic c) hypertonic 7) Which of the following is a function of the cell membrane? a) breaks down lipids, carbohydrates, and proteins b) regulates the materials that come inside and go out of the cell c) keeps the cell wall in place d) stores salt, water, and other nutrients 8) Diffusion is the movement of molecules from ___ a) an area of low concentration to an area of higher concentration b) an area of high concentration to an area of lower concentration c) an area of isotonic solution to an area of hypotonic solution d) an area of isotonic solution to an area of hypertonic solution 9) The diffusion of WATER across a selectively permeable membrane is called _____ a) facilitated diffusion b) endocytosis c) active transport d) osmosis 10) The only difference between diffusion and facilitated diffusion is ___. a) facilitated diffusion requires energy  b) facilitated diffusion uses protein channels to move substances through the cell membrane c) facilitated diffusion moves substances from an area of low concentration to an area of high concentration d) diffusion requires energy

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