Cells: Movement of Materials
Study Questions

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  1. The movement of an ion or molecule from an area of high concentration to one of lower concentration is called:
  1. simple diffusion
  2. osmosis
  3. facilitated diffusion
  4. active transport
  1. Which of the following is true concerning the movement of materials between cells?
  1. Moving materials from a lower concentration to a higher concentration requires energy.
  2. Osmosis is the movement of water across from an area of high solute concentration to one of low solute concentration.
  3. Osmosis and active tranport require a carrier protein.
  4. Facilitated diffusion and active transport require energy.
  5. Only simple diffusion moves materials along a concentration gradient.
  1. What kind of energy is represented by waterfalls? (check all that apply)
  1. kinetic
  2. potential
  3. cellular
  4. atomic
  1. Which of the following require a protein carrier? (check all that apply.)
  1. simple diffusion
  2. osmosis
  3. facilitated transport
  4. active transport
  1. Endocytosis involves the movement of materials to the outside of the cell that are too large to go through the cell membrane.
TRUE
FALSE
  1. Moving materials from an area of higher concentration to an area of lower concentration requires energy.
TRUE
FALSE
  1. Osmosis involves the movement of water across a semipermeable membrane.
TRUE
FALSE
  1. Ions have a difficult time crossing the plasma membrane because phospholipids are non-polar and repel charged particles.
TRUE
FALSE
MATCHING:
(use lower case; incorrect responses will be replaced with a "?".)

9. simple diffusion a. requires energy

10. osmosis b. higher to lower concentration

11. facilitated diffusion c. transport out of the cell

12. active transport d. water

13. endocytosis e. transport into the cell

14. exocytosis f. protein carrier
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