Download Chapter 10 Homework Questions

Name: ______________________________________ Block: _________ Date: _______________
Biology – Mrs. Northup
Mitosis Homework Questions (pp. 240-259)
Directions: On a separate piece of paper, answer the following questions in complete
sentences (unless you are asked to create a diagram or chart). You may also email
your responses to [email protected].
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Chapter 10-1 Cell Growth
Due: ____________________
1) What are the TWO reasons a cell cannot grow indefinitely?
2) Nutrients and waste getting into and out of the cell are limited by the cell’s surface
area. What CELL STRUCTURE represents a cell’s surface area?
3) The amount of nutrients a cell needs and the wastes it produces is determined by the
cell’s volume. What CELL STRUCTURE represents a cell’s volume?
4) What MUST happen before cell division occurs?
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Chapter 10-2 Cell Division
Due: ____________________
1) What are the two ORGANIC MOLECULES that make up chromosomes?
2) How many chromosomes are in the nucleus of EVERY human body cell?
3) What are sister chromatids?
4) Name the two GENERAL stages of a cell’s life.
5) Convert Figure 10-4 into graphic organizer. A few of the spaces have been
completed for you.
Cell Cycle
Mitosis
S Phase
6) BRIEFLY SUMMARIZE the events of the four main phases of the cell cycle: G1, S, G2, M.
7) DRAW the FIVE phases of cell division (prophase, metaphase, anaphase, telophase,
and cytokinesis) from Figure 10-5. Hint: Use the drawings, not the photographs.
8) Complete the following sentence: Mitosis is the division of the __________________
whereas cytokinesis is the division of the ___________________.
9) What is the MAIN difference between the cytokinesis of animal and plant cells?
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Chapter 10-3 Regulating the Cell Cycle
Due: ____________________
1) Other than keeping itself from getting too big, why does a cell divide to make new
cells?
2) What happens when dividing cells come in contact with one another?
3) An example of an internal regulator is that a cell won’t divide until all its
chromosomes are replicated. Why is this important to the cell?
4) An example of an external regulator is a chemical in the body such as a drug or a
hormone stimulates the cell and causes it to divide. What could be a potential medical
use for these external regulators?
5) What disease occurs when a cell does not stop dividing?
6) Complete the following sentence: A _________________ is a mass of cancer cells.
7) What causes cancer to spread throughout the body?
8) What are THREE possible causes of cancer?
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Meiosis Homework Questions (pp. 275-278)
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Chapter 11-4 Meiosis
Due: ____________________
1) The purpose of meiosis is to make gametes. What is a gamete?
2) A human has 46 chromosomes in every cell. How many chromosomes came from the
mother? How many chromosomes came from the father?
3) What happens to the number of chromosomes in a cell as a result of meiosis?
4) Look at Figure 11-15. What does Meiosis I look like? Hint: Look back at page 246.
5) Read the section about crossing over. Crossing over is when chromosomes exchange
small pieces to create different gene combinations before forming gametes. How does
this explain why siblings in a family look similar but not identical?
6) Complete the following table comparing mitosis and meiosis.
Mitosis
Number of cells produced
Chromosome number as compared
to parent cell
Genetically identical or genetically
different from parent?
Purpose in the body
Meiosis
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Alternative Assessment:
Instead of completing the questions for sections 10-1 to 10-3 and 11-4 above, you may
answer the three following open response questions to take their place.
1) Below are cells from the tip of an onion root.
a. What process is occurring in all three of the cells indicated by the arrows?
b. Describe three events that occur during this process.
c. What purpose does this process serve in the onion root tip?
2) The illustration below represents a cell that is entering mitosis.
a. Identify one function of mitosis.
b. The cell shown in the illustration has recently completed the synthesis phase (S phase)
of the cell cycle and is in prophase of mitosis. What happened in this cell during the S
phase in preparation for division? Describe the evidence that supports your answer.
c. Draw the end products that will be formed when this cell completes mitosis.
3) The diagrams below illustrate two different types of cell division.
a. Identify which diagram shows the process of mitosis and which diagram shows the
process of meiosis.
b. Explain three differences between mitosis and meiosis. Your answer should include
differences found in the actual processes and differences found in the cells resulting
from each type of division.