6: Membranes (part 2: Membrane Transport) Quiz

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  1. Aquaporin, a channel protein, helps with the facilitated diffusion of ______________ across the cell membrane.1
  2. Facilitated diffusion is a form of passive transport.1
  3. Small molecules like oxygen and carbon dioxide can diffuse directly through a cell membrane.1
  4. What is true about passive transport?1
  5. Proton pumps require the use of energy to work.1
  6. Unlike passive transport, active transport requires the use of _____________.1
  7. Endocytosis is an example of1
  8. Endocytosis is the process cells use to bring large molecules into the cell.1
  9. Pumps move molecules against their concentration gradient.1
  10. Facilitated diffusion is a form of active transport.1
  11. What is a concentration gradient?1
  12. Which of these is NOT true of exocytosis?1
  13. In diffusion, molecules will naturally move _____________ their concentration gradient.1
  14. Nothing except water can diffusion through a cell membrane.1
  15. Diffusion is an example of1
  16. What kinds of energy are commonly used by pumps during active transport? (Select all right answers)1
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