Chapter 7:

  1. Hydrophobic molecules and small molecules can pass through the plasma membrane by
    1. osmosis.
    2. diffusion.
    3. active transport.
    4. phagocytosis.
    5. pinocytosis.
  2. Most plasma membranes are made of
    1. nucleic acids
    2. lipoproteins
    3. phospholipids
    4. polysaccharides
    5. triglycerides
  3. In ________ environments, external solute concentration is less than it is inside the cell.
    1. isotonic
    2. hypotonic
    3. hypertonic
    4. supertonic
    5. subtonic
  4. Which of the following processes includes all others?
    1. osmosis
    2. diffusion of a solute across a membrane
    3. facilitated diffusion
    4. passive transport
    5. transport of an ion down its electrochemical gradient