FNU Cells and Cellular Processes Multiple Choice Questions

  1. Question 1

    0.25 PointsIn the experiment in which Frye and Edidin fused the plasma membranes of a mouse and a human cell, what happened to the membrane proteins?

  2. Question 2

    0.25 PointsFigure 5-2

    Consider the cellular process illustrated in the accompanying figure. What substance would most likely be used to transport?

  3. Question 3

    0.25 PointsHow do gap junctions differ from desmosomes?

  4. Question 4

    0.25 PointsFigure 5-3
    In the accompanying figure, what is the role of the structures between the membranes?

  5. Question 5

    0.25 PointsWhat is the passive movement of water along a concentration gradient?

  6. Question 6

    0.25 PointsIn cells that are constantly involved in secretion, an equivalent amount of membrane must be returned to the interior of the cell for each vesicle that fuses with the plasma membrane; if this does not occur, then what would happen?

  7. Question 7

    0.25 Points____ are loosely associated with the phospholipid bilayer, whereas ____ are tightly bound to it.

  8. Question 8

    0.25 PointsIf phospholipids form a spherical structure when placed in water, then which of the following is the most logical conclusion about those phospholipid molecules?

  9. Question 9

    0.25 PointsWhat does an ABC transporter use to transport larger ions and molecules across the cell membrane?

  10. Question 10

    0.25 PointsHow do the phospholipids in vegetable oil differ from those of animal fat?

  11. Question 11

    0.25 PointsDuring phagocytosis, what may fuse with the vacuole to further degrade the ingested material?

  12. Question 12

    0.25 PointsOnce ligand molecules bind to receptors in coated pits of a plasma membrane, the next step of receptor-mediated endocytisis would be:

  13. Question 13

    0.25 PointsWhat happens during the cotransport of glucose and sodium ions?

  14. Question 14

    0.25 PointsSince sodium-potassium pumps transport sodium ions out of a cell and potassium ions into a cell, what type of carrier proteins are they?

  15. Question 15

    0.25 PointsFigure 5-1

    Refer to the accompanying figure. Which best describes the red blood cells in Figure B?

  16. Question 16

    0.25 PointsWhat type of cellular junction cements cells together that use cadherins as a belt around each cell?

  17. Question 17

    0.25 PointsIn a lipid bilayer, __________ fatty acid tails face each other within the bilayer and form a region that excludes water.

  18. Question 18

    0.25 PointsBiological membranes are one dimensional fluids.__________________

  19. Question 19

    0.25 PointsA transmembrane protein differs from other membrane proteins because it:

  20. Question 20

    0.25 PointsWhat is required for facilitated diffusion to take place?

  21. Question 21

    0.25 PointsFigure 5-2

    What cellular process is represented in the accompanying figure?

  22. Question 22

    0.25 PointsThe term “fluid mosaic model” refers to the:

  23. Question 23

    0.25 PointsIf the concentration of solutes in a cell is less than the concentration of solutes in the surrounding fluid, then the extracellular fluid is said to be:

  24. Question 24

    0.25 PointsIn the accompanying figure, what is the form of cellular junction?

  25. Question 25

    0.25 PointsThe sodium–potassium pump is a carrier protein that maintains a(n) ____ gradient across the plasma membrane.

  26. Question 26

    0.25 PointsA patient who has had a severe hemorrhage accidentally receives a large transfusion of distilled water directly into a major blood vessel. What effect will this have on the patient?

  27. Question 27

    0.25 PointsCompare and contrast simple diffusion, osmosis, and facilitated diffusion.

  28. Question 28

    0.25 PointsA person has a genetic disease that prevents the phospholipids in the plasma membrane of the white blood cells from freely fusing with the other membranes within the cell. How would this disease affect phagocytosis?

  29. Question 29

    0.25 PointsPeripheral proteins are linked to either surface of the plasma membrane by:

  30. Question 30

    0.25 PointsWhat facilitate the rapid transport of water through the plasma membrane?

  31. Question 31

    0.25 PointsWhat method does a human white blood cell employ to engulf a bacterial cell?

  32. Question 32

    0.25 PointsAlthough glucose molecules constantly diffuse into a red blood cell along their concentration gradient, equilibrium is never reached and a steep concentration gradient is continually maintained. What causes this?

  33. Question 33

    0.25 PointsWhat process halts the net movement of water from a hypotonic solution into a plant’s cells and often provides the structural support to many plants?

  34. Question 34

    0.25 PointsHow are integral proteins unique in cell membranes?

  35. Question 35

    0.25 PointsThe role of ATP in the sodium-potassium pump is to:

  36. Question 36

    0.25 PointsProteins that are destined to become associated with the inner surface of the plasma membrane are:

  37. Question 37

    0.25 PointsPlasmodesmata of plant cells are functionally equivalent to the ____ of animal cells.

  38. Question 38

    0.25 PointsWhat have studies of glucose transport in liposomes revealed?

  39. Question 39

    0.25 PointsA wilted flower placed in a vase of water for several hours became stiff and stood erect. When it was placed in a salt solution, it wilted. From this information, we can say that the cells of the flower are:

  40. Question 40

    0.25 PointsFigure 5-1

    Refer to the accompanying figure. Which best describes what is happening to the red blood cells in Figure A?

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