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A
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CHAPTER 9
Cellular Reproduction
Part A: Multiple Choice
In the space at the left, write the letter of the term or phrase that best answers each question.
1. What can limit the size of a cell?
A. frequency of the cell cycle
B. maximum rate of cell mitosis
C. nutrient and energy levels
D. ratio of surface to volume
2. Which occurs during cytokinesis?
A. binary fission takes place
B. cytoplasm divides
C. DNA duplicates
D. spindle apparatus forms
3. What type of concern is raised by embryonic stem cell research?
A. ethical
B. medical cost
C. public health
D. scientific
Part B: Matching
Check the box to indicate whether the event described by each statement occurs during the
normal cell cycle or abnormal cell cycle. Check one box for each statement.
Statement
Normal Cycle
Abnormal Cycle
1. Results in a condition called cancer
2. Involves special proteins called cyclins
3. Can be caused by an overexposure to X rays
4. Has an environmental limit to prevent cells from dividing endlessly
136 Cellular Reproduction CHAPTER 9
Unit 2
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CONTINUED
Part C: Interpreting Drawings and Graphs
Use the illustration above to respond to the following statement.
1. Identify the anaphase, metaphase, prophase, and telophase stages of mitosis in the
drawings labeled A, B, C, and D.
A.
C.
B.
D.
Use the graph above to answer each question.
2. Interpret What is the rate of pancreatic cancer for 62-year-old males?
3. Interpret What gender and age experiences the highest rate of pancreatic cancer?
Unit 2
CHAPTER 9 Cellular Reproduction 137
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CONTINUED
Part D: Short Answer
Write your response to each statement in the space provided.
1. List the three stages of the cell cycle.
2. Compare the medical benefits of adult stem cells and embryonic stem cells. Use the
term specialized cells in your answer.
Part E: Concept Application
Write your response to each statement in the space provided.
1. Infer why a law was passed in some states and cities in the United States that
prevents people from smoking inside public buildings and restaurants. Include the
term carcinogen in your discussion.
2. Explain why the cancer rate of a group of elderly people living in a nursing home is
higher than the cancer rate of a class of first-grade children.
138 Cellular Reproduction CHAPTER 9
Unit 2