Name: _____________________________________ Date: ____________________ Block: _______________
Biology IB Unit 4 Test Review Sheet
1. What happens to the volume and surface area as a cell gets larger?
2. Why do large cells have more trouble than small cells?
3. Define cell division.
4. What happens when a cell divides?
5. When during the cell cycle do chromosomes become visible?
6. When during the cell cycle is a cell’s DNA replicated?
7. Label the parts of the cell cycle.
A. _______________________________
B. _______________________________
C. _______________________________
D. _______________________________
E. _______________________________
F. _______________________________
G. _______________________________
H. _________Cytokinesis_______________
8. Define cell cycle.
9. What is the arrow pointing to?
What is the circle in the middle called?
Circle in middle
10. List the four phases of mitosis in order.
Name: _____________________________________ Date: ____________________ Block: _______________
11. During which phase of mitosis do the chromosomes line up in the middle of
the dividing cell?
12. What is the spindle responsible for during mitosis?
13. What are the two main stages of cell division?
14. How does cell division differ in plant cells?
15. If a cell has 8 chromosomes and it divides during mitosis, two daughter cells will be produced with how
many chromosomes each?
16. What happens when cells come into contact with one another?
17. Define cyclin.
18. What is cancer?
19. What types of organisms does cancer affect?
20. If an organism’s diploid number is 24, its haploid number is what?
21. How many alleles for each gene do gametes have?
22. When are gametes produced?
23. What is shown in the figure to
the right? During what phase
of meiosis does this process
occur?
24. When are tetrads formed during meiosis?
25. What happens during meiosis I and meiosis II that reduces the number of chromosomes?
Name: _____________________________________ Date: ____________________ Block: _______________
26. What does meiosis result in the formation of?
27. Chromosomes assort independently. TRUE or FALSE
28. Using the figure illustrating mitosis
below answer A-D:
A. What is the chromosome
number of the cell shown?
B. Draw in the centrioles.
C. Label the spindle fibers.
D. Label each step of mitosis.
29. A. Label normal cell growth and cancerous cell growth in the diagram.
B. Explain how cancer cells are different from normal cells.
C. What can happen if the cancer cells are left untreated in the diagram above?
30. What is the arrow pointing to in the drawing?
31. Using the figure to the right, label the
stage of meiosis in which the cell has
a single copy of each gene. What is
this phase called?