003 Chapter 3
Created: 9:00:50 AM CDTStudent: _________________________________________________________
Created: 9:00:50 AM CDTStudent: _________________________________________________________
1. | Endoplasmic reticulum is best described as a |
A. | formless liquid. |
B. | cellular inclusion. |
C. | network of interconnected membranes. |
D. | membranous sac. | ||
2. | Ribosomes are composed largely of protein and | ||
A. | lipid. |
B. | DNA. |
C. | RNA. |
D. | carbohydrate. | ||
3. | A nucleolus is composed largely of | ||
A. | RNA and protein. |
B. | RNA and lipid. |
C. | DNA and protein. |
D. | DNA and lipid. | ||
4. | Vesicles are formed by an action of the | ||
A. | lysosomal membrane. |
B. | nuclear membrane. |
C. | cell membrane. |
D. | endoplasmic reticulum. | ||
5. | Membrane proteins function as | ||
A. | receptors. |
B. | pores. |
C. | selective channels. |
D. | all of the choices are correct. | ||
6. | If the concentration of glucose in the water outside of a cell is higher than the concentration inside | ||
A. | water will tend to enter the cell by osmosis. |
B. | water will tend to leave the cell by osmosis. |
C. | glucose will tend to enter the cell by osmosis. |
D. | glucose will tend to leave the cell by osmosis. | ||
7. | Movement of molecules through a membrane by filtration depends upon the presence of | ||
A. | osmotic pressure. |
B. | hydrostatic pressure. |
C. | atmospheric pressure. |
D. | none of the choices are correct. | ||
8. | If a solution outside of a cell contains a greater concentration of dissolved particles than the contents of the cell, the solution is said to be | ||
A. | isotonic. |
B. | iso-osmotic. |
C. | hypertonic. |
D. | hypotonic. | ||
9. | Which of the following cellular processes requires the greatest expenditure of cellular energy? | ||
A. | diffusion |
B. | osmosis |
C. | active transport |
D. | dialysis | ||
10. | Which of the following processes involves the use of specific carrier molecules? | ||
A. | phagocytosis |
B. | pinocytosis |
C. | active transport |
D. | dialysis | ||
11. | Which of the following lists includes the phase of mitosis in the correct sequence? | ||
A. | prophase, metaphase, telophase, anaphase |
B. | prophase, metaphase, anaphase, telophase |
C. | telophase, prophase, metaphase, anaphase |
D. | anaphase, metaphase, prophase, telophase | ||
12. | Because of mitosis and cytoplasmic division, the resulting cells contain | ||
A. | identical chromosomes. |
B. | identical DNA information. |
C. | Both identical chromosomes and identical DNA information are true. |
D. | Neither identical chromosomes nor identical DNA information is true. | ||
13. | Differentiation seems to result from different | ||
A. | DNA information being "turned on" in different cells. |
B. | cells possessing different kinds of DNA information. |
C. | cells possessing different kinds of chromosomes. |
D. | None of the choices are correct. | ||
14. | Mitochondria function to | ||
A. | manufacture protein. |
B. | release energy from glucose molecules. |
C. | digest lipid molecules. |
D. | move chromosomes from place to place. | ||
15. | During the metaphase of mitosis, chromosomes | ||
A. | line up between the centrioles. |
B. | change into chromatin. |
C. | migrate to opposite poles of the cell. |
D. | are surrounded by a nuclear membrane. | ||
16. | The decrease in skeletal muscle size following a prolonged period of inactivity is most closely associated with the activity of | ||
A. | peroxisomes. |
B. | lysosomes. |
C. | centrosomes. |
D. | ribosomes. | ||
17. | Dialysis is most closely associated with | ||
A. | the artificial heart. |
B. | the artificial kidney. |
C. | osmosis. |
D. | facilitated diffusion. | ||
18. | During hemodialysis, if the concentration of glucose in the blood is higher than the concentration of glucose in the dialyzing fluid, | ||
A. | glucose concentration of the blood will increase. |
B. | glucose concentration of the dialyzing fluid will increase. |
C. | glucose concentration of the dialyzing fluid will decrease. |
D. | glucose concentrations in the blood and dialyzing fluid will remain unchanged. | ||
19. | Which of the following is isotonic to red blood cells? | ||
A. | 0.9 percent NaCl solution |
B. | distilled water |
C. | 0.9 percent glucose solution |
D. | None of the choices are correct. | ||
20. | The tendency for cancer cells to have abnormalities in cellular structures is called | ||
A. | hyperplasia. |
B. | anaplasia. |
C. | metastasis. |
D. | malignancy. | ||
21. | Which of the following factors is associated with causing cancer? | ||
A. | virus infections |
B. | altered genes |
C. | exposure to radiation |
D. | All of the choices are correct. | ||
22. | Chemotherapy usually makes use of drugs that affect the cancer cell's | ||
A. | nuclear membranes. |
B. | cytoplasmic membranes. |
C. | DNA molecules. |
D. | lysosomes. | ||
23. | Which of the following is characteristic of aging cells? | ||
A. | Golgi apparatus becomes fragmented. |
B. | Lipid inclusions accumulate. |
C. | Glycogen-containing structures decrease. |
D. | All of the choices are correct. | ||
24. | Tay-Sachs disease involves a cellular defect in | ||
A. | membrane structure. |
B. | lysosomal enzymes. |
C. | ciliary activity. |
D. | mitotic spindles. | ||
25. | Cytoplasm occurs between the cell membrane and the nuclear envelope of a cell. | ||
26. | A lysosome is an example of a cellular organelle. |
27. | Mitochondria function to manufacture proteins. |
28. | Osmosis is a special case of diffusion. |
29. | During the metaphase of mitosis, chromosomes line up between the two centrioles. |
30. | The anaphase of mitosis involves centromeres separating and duplicate parts of chromosomes becoming separated. |
31. | A cell that secretes a large quantity of proteins (i.e., pancreas secreting insulin) would have a larger number of lysosomes for this function. |
32. | A 5 percent solution of glucose is isotonic to human cells. |
33. | Osmosis is a special form of ___________. |
34. | A membrane that allows some substances to pass through while excluding others would be called __________. |
35. | Chemically, a cell membrane is composed largely of protein and _______. |
36. | Rough endoplasmic reticulum has __________attached to its surface. |
37. | The organelle that functions to "refine and package" cellular proteins for secretion is the __________. |
38. | An organelle that can be described as a fluid-filled membranous sac whose inner lining is folded to form partitions is a(an) _____________. |
39. | The spreading of molecules of ions from a region of higher concentration toward a region of lower concentration is called ___________. |
40. | The process by which glucose can pass through a cell membrane by combining with special carrier molecules is called __________. |
41. | Movement of sodium ions from a region of lower concentration inside a cell toward a region of higher concentration outside the cell is accomplished by _____________. |
42. | Tiny droplets of liquid can pass through a cell membrane by the process called __________. |