2. the Number of Chromosomes in a Gamete Is Represented by the Symbol ______

Name: ______Date: ______Period: ______

Ch. 9 Test Review

9.1 Cell Growth 1. Define cell cycle. 2. The number of chromosomes in a gamete is represented by the symbol ______. 3. The process by which a cell divides into two daughter cells is called ______. 4. When during the cell cycle are chromosomes visible? 5. Draw and label the cell cycle. 6. List the phases of the cell cycle. 7. What events occur during each phase of the cell cycle? 8. What happens during interphase? 9. What is binary fission? What type of organisms go through this form of reproduction? 10. Which part of the cell cycle takes the longest? 11. When is DNA replicated?

9.2 Mitosis & cytokinesis 12. Draw a chromosome. Label the chromatids and centromere. 13. Chromosomes contain: (circle all that apply) histones, DNA, nucleosomes 14. During which phase of mitosis do chromosomes become visible? 15. List the phases of mitosis in order. 16. What term is used to describe the structure that protects the ends of a chromosome? 17. What is a nucleosome? 18. What is the first phase of mitosis? 19. During which phase of mitosis do the chromosomes line up along the middle of the dividing cell? 20. What is the role of spindle fibers during mitosis? What are spindle fibers made of? 21. What are the 2 main stages of cell division? 22. What are centrioles? What are they made of? 23. What is a cleavage furrow? What type of cells form cleavage furrows? 24. What is a cell plate? What type of cells form a cell plate? 25. During mitosis, if a parent cell has 4 chromosomes, how many chromosomes will each daughter cell have? 26. If an organism’s diploid number is 12, its haploid number is ______. 27. Draw a cell during metaphase. 28. Draw a cell during prophase. 29. Draw a cell during anaphase. 30. Draw a cell during telophase. 31. During what stage of mitosis do sister chromatids separate? 32. During what stage of mitosis does the nucleolus reappear? 33. After being scraped or cut, the skin begins to heal. What biological process best accounts for the replacement of skin cells? 34. What is the purpose of mitosis?