Chapter 6-CELL MEMBRANE AND TRANSPORT OF MATERIALS

1. Name two cell organelles that are not bounded by a membrane.2. Molecules of protein can be destroyed by which chemical?3. Molecules of lipid can dissolve in what substance?4. What two substances make up the plasma (cell) membrane?5. What is the name of the model that shows the arrangement of the two types of

molecule that make up the plasma membrane?6. Identify molecule types A and B.

7. Which lettered structures enclose a narrow channel?8. Does A show the hydrophilic end of the molecule or hydrophobic end?9. Name two gases that can pass through a cell easily by diffusion through the cell membrane?10. Does diffusion happen along a concentration gradient or against it?11. Is diffusion a passive or active process?12. What name is given to the special case of diffusion that involves the movement of water from high to low concentration through a selectively permeable membrane?13. What happens to a red blood cell when it is put in a hypertonic solution?14. What name is given to a solution with a high water concentration?15. What name is given to two solutions with equal water concentrations?16. What happens to a red blood cell when put into a hypotonic solution like pure water?17. Is osmosis a passive or active process?

18. Name process Y in the above diagram.19. Is process Y an active or passive process?20. Does process Y go along a concentration gradient or against it?21. Name process X.22. Name three factors that can affect the rate of active transport.23. What name is given to the process below?

24. What name is given to the process below?

25. Name two types of endocytosis.