Biology: Science for Life

Chapter 5: Cancer: The Cell Cycle and Cell Division

Self Test

1. Tumors are the result of: [Hint]

2. Why would a physician be most concerned to find cancerous cells in the lymphatic system? [Hint]

3. Why are lymph nodes often removed during surgery on a cancer patient? [Hint]

4. Why are malignant tumors that have metastasized so dangerous? [Hint]

5. An unusual cell has been found that seems to be unable to replicate its DNA. The problem must be linked to which phase of the cell cycle? [Hint]

6. If a cell failed to perform cytokinesis: [Hint]

7. Imagine that you are looking at a cell in the microscope. When you examine the cell, you see that the nucleus is not present and that the chromosomes are condensed and lined up in the center of the cell. What are the possible stages of division in which this cell might be? [Hint]

8. A consequence of a malfunction in the G1 phase of the cell cycle might lead to: [Hint]

9. Each cell that enters the cell cycle contains sister chromatids. [Hint]
10. Cell cycle control is regulated by various checkpoints along the way. The most important thing(s) needed for these checkpoints is (are): [Hint]

11. In the absence of growth factors, you would expect a dividing cell to: [Hint]

12. Malignant cells always exhibit anchorage dependence. [Hint]
13. Which of the following is NOT TRUE concerning cancer? [Hint]

14. Which of the following should NOT prevent a normal cell from dividing? [Hint]

15. All humans have proto-oncogenes. [Hint]
16. A mutation directly causes changes to: [Hint]

17. The most common risk factor for nearly every type of cancer is: [Hint]

18. Your friend constantly puts off her yearly physical exam which involves a PAP test to detect cervical cancer. She makes the statement to you, "I have nothing to worry about. Cervical cancer doesn't run in my family and I have a healthy lifestyle." Is this a valid explanation? [Hint]

19. In order to accurately analyze a biopsy sample and make a diagnosis, you must: [Hint]

20. Laparoscopic procedures are NOT appropriate when: [Hint]

21. You are attempting to develop a new chemotherapy drug. The best candidate would be a drug that: [Hint]

22. The most appropriate treatment to be used after metastasis has been confirmed is: [Hint]

23. A cancer vaccine can usually prevent the development of most types of cancer. [Hint]
24. A person with chronic indigestion along with a change in bowel habits should be screened for cancer. [Hint]
25. Radio-immunotherapy is: [Hint]

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