ch 10 Test studyguide 06 07 by 3V706Wi

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									Biology I                                          Name ____________________
Mrs. Snyder                                        Date _____________________

                            Chapter 10 Study Guide for Test

1. Give two reasons why a cell needs to divide?


2. Discuss the surface area to volume ratio dilemma?



3. How many ways can a cell divide?


4. When do you start making sex cells?
             a. For Males?
             b. For Females?

5. In Eukaryotes (cell with a nucleus) where is the DNA located?


6. In Prokaryotes (no nucleus), where is the DNA located?


7.Give an example of eukaryotes and prokaryotes cells.



8. What are the differences between chromosomes, DNA and genes AND how are they
related?


9. How many pairs of chromosomes does a human have?

10. What is the diploid number for a human?

11. What is the haploid number for a human?

12. What are gametes?

13. What type of cell has a diploid number?


14. What type of a cell has a haploid number?
15. What is the solution to the problems caused by cell growth?

16. As a cell increases in size, which increases more rapidly, its surface area or its
    volume?

17. When are chromosomes visible under a microscope?

18. What must occur before a cell divides?

19. Most of the cell is in what phase of the cell cycle?

20. Most of the cell is in what phase of Mitosis?

21. What are the phases in Interphase?

22. What is cytokinesis?

23. What does the cell do when it’s at G1 phase?

24. What does the cell do when it’s at G2 phase?

25. What does the cell do when it’s at S phase?

26. Name the 4 phrases of Mitosis ( in order)?

27. Fill in this Cell Cycle.
28. a. Draw a cell at each phase.
        a. State the major events that occur in each of the following phases.
           1. Interphase –



           2. Prophase –



           3. Metaphase –



           4. Anaphase –




           5. Telophase –




29. What are stem cells?


30. What are oncogenes? Normally are these genes turned on or off?



31. What is the function of the tumor suppressor gene? Normally are these genes
    turned on or off?




32. What is the difference between a malignant and a benign tumor?



33. What are telomeres?
34. Why do cells stop dividing? Why can’t they divide forever?



35. What is the function of the telomeres?



36. Explain the steps of mutations that must occur before a person gets diagnosed
    with Colon Cancer? Discuss diet, genes, oncogene and tumor suppressor gene
    then end with a benign and malignant tumor.




37. What is metastasis?


38. What is apoptosis?

39. How many chromosomes do autosomes have?

40. How many chromosomes do sex chromosomes have?

41. What does diploid mean?

42. What does haploid mean?

43. What is Telomerase?

44. What type of cells have telomerase?

								
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