Download Welcome to the Chapter 10 Test!

Welcome to the Chapter 10 Test!
Please set up your answer sheet like this:
Name #1
Name #2
Date, Period
Chapter 10 Test
Instructions:
• The test is in the same style as a visual quiz. However, you
get to work at your own pace.
• You can discuss each answer with your table partner.
• Together, you will turn in one set of answers.
• Discuss each answer before writing!
• During the discussion, decide which concepts from the
notes to include in your answer.
• Remember to underline each concept.
• If you can’t whisper, you will work alone.
Good luck, and remember to whisper
when discussing your answers!
Also remember to turn in your study
guide along with your answers
1. Explain why humans would be unable to reproduce without
cell division.
The image below shows the cells of an adult sequoia tree
compared to the cells of a baby sequoia tree.
Adult
Baby
2. Explain why an adult sequoia is hundreds of times larger
than a baby sequoia, even though their cells are exactly the
same size.
Adult
Baby
The diagram below shows two cells that have been placed in
a solution of water and oxygen gas.
3. After one hour, predict which cell will be completely filled
with oxygen, and defend your answer.
4. Explain why “DNA overload” occurs when a cell gets too
large.
5. Identify the process shown in the diagram below, and
identify the yellow blobs in the diagram.
?
?
Stomach cells produce digestive enzymes following the
instructions in their DNA.
Digestive enzymes
6. Predict how the daughter cells would be affected if a
stomach cell did not replicate its DNA before dividing.
Digestive enzymes
7. DNA is usually kept long and loose, so that it can be easily
replicated.
a. Explain how DNA changes just before a cell divides.
b. Explain why this change occurs.
8. Explain how chromosomes change after division is
complete, and explain why this change occurs.
Daughter cells
9. Identify the two main parts of the cell cycle, and explain
how they differ from each other in terms of what the cell
does during these phases.
10. Identify the part of the cell cycle shown in the diagram
below, AND defend your answer.
11. Identify the part of interphase that the circled cell is in,
and defend your answer.
12. Identify the part of interphase that the circled cells are in,
and describe TWO things that these cells are doing.
13. Identify the part of interphase that the circled cell is in,
and explain why there are no chromosomes visible in this cell.
14. State the number of M phase cells shown below, and
explain why only a few of these cells are in M phase.
15. During S phase, enzymes make approximately 120,000
mistakes when they replicate a DNA molecule. Explain why
most of these errors never make it to the M phase.
16. Identify the two main parts of M phase, and explain how
they differ from each other in terms of what occurs during
these two parts.
17. List the steps of mitosis in order, and explain why mitosis
must occur in steps.
18. Describe the function of spindle fibers, and identify the
step of mitosis when they do their job.
19. Identify the telophase cell below, and explain how you can
tell that it is no longer in anaphase.
A
C
B
D
E
F
H
G
20. List the cells in order, starting with the cytokinesis cell,
and state where each cell is in the cell cycle.
A
C
B
D
E
F
H
G
21. List one similarity and one difference between animal and
plant cell cytokinesis.
The chart below shows the rate of cell division for different
cells in the body.
Skin cell
24 hours
Abdominal muscle cell
4 months
Liver cell
300 – 400 days
Stomach cell
4-5 days
22. Explain how these cells “know” how often they should
divide.
Skin cell
24 hours
Abdominal muscle cell
4 months
Liver cell
300 – 400 days
Stomach cell
4-5 days
23. A healthy woman develops a stomach tumor. She does
not smoke or do drugs, and she has not been exposed to any
chemicals or radiation. Explain why her stomach cells have
suddenly begun to divide uncontrollably.
Stomach tumor
Cancerous stomach cells
Normal stomach
cells
A surgeon removes the woman’s stomach tumor. However,
he leaves behind a few cancerous cells.
Cancerous stomach cells
Normal stomach
cells
24. A year later, the same woman is diagnosed with a brain
tumor. Explain how this happened.