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CH 10 Cell Growth & Division

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
All of the following are problems that growth causes for cells EXCEPT
a.
more demands on DNA.
b.
excess oxygen.
c.
obtaining enough food.
d.
expelling wastes.
 

 2. 
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.
 

 3. 
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 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.
 

 4. 
The process by which a cell divides into two daughter cells is called
a.
cell division.
b.
metaphase.
c.
interphase.
d.
mitosis.
 

 5. 
An advantage of sexual reproduction over asexual reproduction is that sexual reproduction
a.
takes less time
b.
requires more time
c.
provides genetic diversity
d.
produces identical offspring
 
 
nar001-1.jpg

Figure 10–1
 

 6. 
Which advantage of having the a cell’s DNA bundled into separate chromosomes is illustrated in Figure 10–1 above?
a.
During DNA replication, the number of chromosomes is cut in half.
b.
During DNA replication, the number of chromosomes stays the same.
c.
During cell division, each daughter cell will get the same number of genes.
d.
During cell division, each daughter cell will get a random number of genes.
 
 
nar002-1.jpg

Figure 10–2
 

 7. 
A multicellular organism begins life as a single cell—a fertilized egg with a complete set of chromosomes. The picture in Figure 10–2 above shows how the 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.
 

 8. 
During which phase in the cell cycle does mitosis happen?
a.
G1 phase
b.
G2 phase
c.
M phase
d.
S phase
 

 9. 
Which pair includes a phase of the cell cycle and a cellular process that occurs during that phase?
a.
G1 phase, DNA replication
b.
G2 phase, preparation for mitosis
c.
S phase, cell division
d.
M phase, cell growth
 

 10. 
When during the cell cycle is a cell’s DNA replicated?
a.
G1 phase
b.
G2 phase
c.
S phase
d.
M phase
 

 11. 
Which event occurs during interphase?
a.
The cytoplasm divides.
b.
Centrioles duplicate.
c.
Spindle fibers begin to form.
d.
Centromeres divide.
 

 12. 
Which of the following is a correct statement about the events of the cell cycle?
a.
Little happens during the G1 and G2 phases.
b.
DNA replicates during cytokinesis.
c.
The M phase is usually the longest phase.
d.
Interphase consists of the G1, S, and G2 phases.
 
 
nar003-1.jpg

Figure 10–3
 

 13. 
Cell division is represented in Figure 10–3 by the letter
a.
A.
b.
B.
c.
C.
d.
D.
 

 14. 
During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
a.
prophase
b.
telophase
c.
metaphase
d.
anaphase
 

 15. 
Which of the following represents the phases of mitosis in their proper sequence?
a.
prophase, metaphase, anaphase, telophase
b.
interphase, prophase, metaphase, anaphase, telophase
c.
interphase, prophase, metaphase, telophase
d.
prophase, anaphase, metaphase, telophase
 

 16. 
The two main stages of cell division are called
a.
mitosis and interphase.
b.
synthesis and cytokinesis.
c.
the M phase and the S phase.
d.
mitosis and cytokinesis.
 

 17. 
During normal mitotic cell division, a parent cell that has four chromosomes will produce two daughter cells, each containing
a.
two chromosomes.
b.
four chromosomes.
c.
eight chromosomes.
d.
sixteen chromosomes.
 

 18. 
One difference between cell division in plant cells and in animal cells is that plant cells have
a.
centrioles.
b.
centromeres.
c.
a cell plate.
d.
chromatin.
 

 19. 
When cells are grown in a laboratory, which of the following is a factor that can stop normal cells from dividing?
a.
contact with other cells
b.
growth factors
c.
a cut in the skin
d.
injection of cyclin
 

 20. 
Cells grown in a petri dish tend to divide until they form a thin layer covering the bottom of the dish. If cells are removed from the middle of the dish, the cells bordering the open space will begin dividing until they have filled the empty space. What does this experiment show?
a.
Cell division is a completely random process.
b.
Once cells divide, they can never divide again.
c.
The controls on cell growth and division can be turned on and off.
d.
There is only a limited amount of DNA available to a given group of cells.
 

 21. 
In eukaryotic cells, the timing of the cell cycle is regulated by
a.
centrioles.
b.
cyclins.
c.
spindle fibers.
d.
the nuclear envelope.
 

 22. 
Cancer is a disorder in which some cells have lost the ability to control their
a.
size.
b.
spindle fibers.
c.
growth rate.
d.
surface area.
 

 23. 
Cancer cells form masses of cells called
a.
tumors.
b.
cyclins.
c.
growth factors.
d.
p53.
 

 24. 
A cell with a defective p53 gene is likely to
a.
stop responding to growth regulators.
b.
stop dividing to produce daughter cells.
c.
generate hormones that combat tumors.
d.
produce cells without a defective p53 gene.
 

 25. 
Why are stem cells important?
a.
They have specialized DNA.
b.
They are incapable of becoming cancer cells.
c.
They have the potential to undergo cell division.
d.
They have the potential to develop into other cell types.
 

Bonus
 

 1. 
Bonus-what disease did the girl on the video have that stem cell research may be able to cure in the future?
 



 
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