Name: ______________________________ Date: __________________ Period: ______
Membrane Quiz Multiple Choice – Choose the best answer for each of the following and record your
answer on the answer sheet provided.
1.
2.
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8.
Major kinds of proteins embedded in the plasma membrane include all of the following except
a. channel proteins
b. receptor proteins
c. genetic proteins
d. marker proteins
e. both receptor and channel proteins
All of the following are examples of passive transport except
a. diffusion
b. osmosis
c. ATP synthesis
d. facilitated diffusion
e. diffusion and osmosis
When a cell has the same concentration of solutes as its environment, the solution is said to be
a. isotonic
b. hypertonic
c. hypotonic
d. hydrophilic
e. hydrophobic
Fluidity of the plasma membrane is a result of
a. Lots of water between membrane layers
b. Cholesterol in the membrane
c. Weakness in certain chemical bonds
d. Film of H2O around each fatty acid tail
e. Cytoplasm leaking into membrane
The movement of molecules from an area of high concentration to an area of low concentration is
called
a. Diffusion
b. Endocytosis
c. Catalysis
d. Active transport
e. Osmosis
Phospholipid molecules in the membrane are arranged with their _____________ on the exterior and
their _____________ on the interior.
a. Hydrophobic heads…hydrophilic tails
b. Hydrophilic heads…hydrophobic tails
c. Hydrophobic tails…hydrophilic heads
d. Hydrophilic tails…hydrophobic heads
Which of the following allows cells to pick and concentrate a specific kind of molecule?
a. Passive transport
b. Diffusion
c. Osmosis
d. Receptor-mediated endocytosis
e. Pinocytosis
Which of the following would be least likely to diffuse through a cell membrane without the help of a
transport protein?
a. A large polar molecule
b. A large nonpolar molecule
c. A small polar molecule
d. A small nonpolar molecule
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Name: ______________________________ Date: __________________ Period: ______
9.
A white blood cell is capable of producing and releasing thousands of antibody molecules every
second. Antibodies are large, complex molecules. How would you expect them to leave the cell?
a. Active transport
b. Passive transport
c. Receptor-mediated endocytosis
d. Exocytosis
e. Pinocytosis
10. Which of the following is the difference between active transport (AT) and facilitated diffusion (FD)?
a. AT involves transport proteins, FD does not
b. FD can move solutes against a concentration gradient, AT cannot
c. FD requires energy from ATP, At does not
d. FD involves transport proteins, AT does not
e. AT requires energy from ATP, FD does not
Labeling Diagrams & Short Answer:
11. Label the solutions shown in the following diagram as isotonic, hypotonic, and hypertonic. Draw an
arrow to show which way the water will flow:
12. Which diagram would best show the cells of a human mummy?
13. Describe how the reactions of animal cells placed in these solutions would differ from how plant cells
would react (3 – 5 sentences).
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Name: ______________________________ Date: __________________ Period: ______
14.
a.
What is the structure labeled h in the figure? What is its function?
b.
What is the structure labeled c (located on a and b too) in the figure? What is its function?
c.
What is the structure labeled i in the figure? What is its function?
15. Describe the kinds of molecules that cannot easily diffuse through the membrane. How might they get
in and out of the cell (3 – 6 sentences)?
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Name: ______________________________ Date: __________________ Period: ______
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Name: ______________________________ Date: __________________ Period: ______
Fill In – Complete each of the following with the best answer and place it on your answer sheet.
40. Age of the Earth
41. Age of the Universe
42. Define osmosis
43. Scientist who improved lenses of the microscope
44. Gives cells marker as “self”
45. Proteins in adhering junctions
46. Process of molecules moving out of a cell
47. First scientist to describe cells
48. and 49. Scientists involved with formulating cell theory.
Short Answer – Answer briefly and completely on your answer sheet.
50. Describe the “fluid mosaic model” and why it is named this.
51. List three possible origins of life on Earth. Explain why only one is subject to scientific
investigation.
52. What are the two types of endocytosis and how do they differ?
53. List 5 structural differences between plant and animal cells.
54. What have scientists identified as the cause of cystic fibrosis? Be specific.
55. What happens to a blood cell when it is placed in a hypertonic solution? A hypotonic
solution? Why?
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