Chapter 7 Review: 19627/5024650

  1. Plasma membranes are made of
    1. nucleic acids (wrong)
    2. lipoproteins (wrong)
    3. phospholipids <==== correct
    4. polysaccharides (wrong)
    5. triglycerides (wrong)
      Hint
  2. Hydrophobic molecules and small molecules can pass through the plasma membrane by
    1. osmosis. (wrong)
    2. active transport. (wrong)
    3. phagocytosis. (wrong)
    4. diffusion. <==== correct
    5. pinocytosis. (wrong)
      Hint
  3. Exocytosis involves moving cellular material in transport ________ which fuse with the plasma membrane.
    1. vesicles <==== correct
    2. vacuoles (wrong)
    3. pits (wrong)
    4. channels (wrong)
    5. microtubules (wrong)
      Hint
  4. Which of the following is an example of active transport?
    1. channel proteins (wrong)
    2. carrier proteins (wrong)
    3. sodium-potassium pump <==== correct
    4. osmosis (wrong)
    5. diffusion (wrong)
      Hint
  5. In ________ environments, external solute concentration is less than it is inside the cell.
    1. isotonic (wrong)
    2. hypotonic <==== correct
    3. hypertonic (wrong)
    4. supertonic (wrong)
    5. subtonic (wrong)
      Hint