Class Date Name
10
Write the letter that best answers the question or completes the statement on the line provided.
_____ 1.
Compared to small cells, large cells have more trouble a.
dividing. b.
producing daughter cells. c.
storing needed materials and waste products. d.
moving needed materials in and waste products out.
_____ 2.
Which of the following happens when a cell divides? a.
The cell’s volume increases. b.
It becomes more difficult for the cell to get get rid of wastes. c.
Each daughter cell receives its own copy of the parent cell’s DNA. d.
It becomes more difficult for the cell to get enough oxygen and nutrients.
_____ 3.
A multicellular organism begins life as a single cell—a fertilized egg with a complete set of chromosomes. This cell divides to become two cells, then four cells, eight cells, and so on.
Which of the following statements best describes what happens during this process? a.
Chromosomes are duplicated before cell division so that each new daughter cell has a complete set. b.
Chromosomes are divided evenly during cell division so that each new daughter cell has an equal share of the original set. c.
Chromosomes are stored in the original cell to direct the division of all daughter cells, which do not have their own chromosomes. d.
Chromosomes are randomly distributed during cell division so that some new cells have partial sets while others have complete sets.
_____ 4.
During which phase in the cell cycle does mitosis happen? a.
G
1
phase c.
M phase b.
G
2
phase d.
S phase
_____ 5.
Which of the following is a correct statement about the events of the cell cycle? a.
Little happens during the G
1
and G
2
phases. b.
DNA replicates during cytokinesis. c.
The M phase is usually the longest phase. d.
Telophase is part of the M phase
_____ 6.
The structure labeled A in Figure 10–1 is called the a.
centromere. b.
centriole. c.
sister chromatid. d.
spindle.
_____ 7.
The structures labeled B in Figure 10–1 are called a.
centromeres. c.
sister chromatids. b.
centrioles. d.
spindles.

_____ 8.
During which phase(s) of mitosis are structures like the one shown in Figure 10–1 visible? a.
anaphase only b.
prophase, metaphase, and anaphase c.
metaphase only d.
anaphase and interphase
_____ 9.
One difference between cell division in plant cells and in animal cells is that plant cells have a.
centrioles. c.
a cell plate. b.
centromeres. d.
chromatin.
_____ 10.
Which of the following explains why normal cells grown in a petri dish tend to stop growing once they have covered the bottom of the dish? a.
The cells lack cyclin. b.
The petri dish inhibits cell growth. c.
Contact with other cells stops cell growth. d.
Most cells grown in petri dishes have a defective p53.
_____ 11.
In eukaryotic cells, the timing of the cell cycle is regulated by a.
centrioles. b.
cyclins. c.
d.
spindle fibers. the nuclear envelope.
_____ 12.
Cancer is a disorder in which some cells have lost the ability to control their a.
size. c.
growth rate. b.
spindle fibers. d.
surface area.
Complete each statement on the line provided.
16. During offspring, whereas during spring.
reproduction, cells can produce genetically different
reproduction, cells produce genetically identical off
17. The number of sister chromatids in a human body cell that is entering cell division is
.
18. Together, the G
1
phase, S phase, and G
2
phase are called
19. The phase of mitosis shown in step C in the Figure is called
.
20. During normal development, the cells between toes and fingers die by
In complete sentences, write the answers to the questions on the lines provided.
22.
Which type of reproduction, sexual or asexual, is best suited for organisms that live in a place where environmental conditions are stable? Explain.
, a process of programmed cell death.
23.
How does packaging genetic information into chromosomes help the process of cell division?

24.
Explain the difference between chromatids and chromatin.
25.
The main events of the cell cycle are labeled A, B, C, and D in Figure
10–3. Name these events. Then, briefly state what happens during each event.
26.
How are metaphase and anaphase different?
Use the diagram below to answer the following questions on the lines provided.
Figure 10 –4
27.
Infer What is the chromosome number of the cell shown in Figure 10–4?
Figure 10 –3
28.
Infer Identify the structures labeled X and Y in Figure 10–4.
29.
Apply Concepts List the correct order for the diagrams in Figure 10–4.
30.
Predict After the steps shown in Figure 10–4 are arranged in the correct order, what would a diagram of the next step show?
190