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Transcript
Cell Membranes Practice Test Question #1 A cell with a 65% salt concentration is placed in a 35% salt solution. What will happen to the size of the cell? increase b) decrease c) stay the same a) Question #2 If there is no concentration gradient, which of the following is true? Write in ALL that apply. Cell will stay the same size b) It is in an isotonic solution c) The membrane will not let any materials through d) Water will move in and out equally a) Question #3 Which of the following uses transport proteins? Write in ALL that apply. Endocytosis b) Active transport c) Moving from low to high concentration d) Facilitated diffusion e) Moving from high to low a) Question #4 A cell with a 75% salt concentration is placed in a hypotonic solution. Which of the following is true? The solution is 25% water. b) The solution is 80% salt. c) Water moves into the cell. d) The cell starts to shrink. a) Question #5 Which of the following is FALSE about passive transport? Includes diffusion & osmosis b) It requires a small amount of energy c) It moves molecules down the concentration gradient. d) All of these are true a) Question #6 Large wastes leave the cell by Passive transport b) Osmosis c) Exocytosis d) Endocytosis a) Question #7 Which of the following molecules travels through the phospholipids? Write in all that apply. a) Water b) Proteins c) Large waste d) Carbon dioxide e) Glucose Question #8 Which of the following is true of a hypotonic solution? Write in all that apply. a) Occurs when you are dehydrated b) Concentration of salt is higher inside the cell c) Concentration of water is higher inside the cell d) Water moves into the cell e) Cell shrinks Question #9 Which of the following is true of active transport. Write in all that apply. a) Requires energy b) Used to transport large molecules c) May move small molecules d) Moves down the concentration gradient Question #10 If the concentration of salt is different between the inside and outside of the cell, what exists? a) Isotonic solution b) Concentration gradient c) Hypertonic solution d) Hypotonic solution e) Not enough information given