Name: ___________________________________
Date: _____________
Period: ___________
CELL DIVISION (MITOSIS & MEIOSIS) WEBQUEST
Objective: In this activity, you will use several web pages to examine the
processes of mitosis and meiosis. Both of these processes are important in
maintaining homeostasis as well as allowing organisms to reproduce and
evolution to occur.
Part I: Mitosis
In this internet lesson, you will review the steps of mitosis and view video simulations of cell division.
You will also view an onion root tip and calculate the percentage of cells at each of the stages of cell
division.
Quest A: Please go to the web page, read the text on the page, review the animation, and use
the information there to answer the following questions. You can slow down the video by
clicking step by step through the phases.
http://www.cellsalive.com/mitosis.htm
1. Which stage does the following occur:
Chromatin condenses into chromosomes
___________________________________________
Chromosomes align in center of cell.
___________________________________________
Longest part of the cell cycle.
___________________________________________
Nuclear envelope breaks down.
___________________________________________
Cell is cleaved into two new daughter cells.
___________________________________________
Daughter chromosomes arrive at the poles.
___________________________________________
Chromatids are pulled apart
___________________________________________
1
Acad Bio
Name: ___________________________________
Date: _____________
Period: ___________
Watch the video carefully.
2. The colored chromosomes represent chromatids. There are two of each color because one is an exact
duplicate of the other.
- -How many chromosomes are visible at the beginning of mitosis? ________________
-- How many are in each daughter cell at the end of mitosis? __________________
--The little green T shaped things on the cell are: ____________________________
-- What happens to the centrioles during mitosis? _____________________________
3. Identify the stages of these cells:
2
Acad Bio
Name: ___________________________________
Date: _____________
Period: ___________
Quest B: Please go to the web page and use the information there to draw a cell in each of the
following phases. http://www.johnkyrk.com/mitosis.html.
Prophase
Metaphase
Anaphase
Telophase
Quest C: Please go to the following web page.
http://www.biology.arizona.edu/cell_bio/activities/cell_cycle/cell_cycle.html
 Read the introduction and then click the “NEXT” button.
 You will have 36 cells to classify. If you miss one, please read what is written about your
mistake!!! When you’re finished, record your data in the chart below. (Round to whole
numbers.)
 Go to www.calculator.com and click on the “fractions” calculator to do your calculations.
Interphase Prophase Metaphase Anaphase Telophase Total
Number of Cells
Percent of Cells (calculate: number of cells
divided by total cells x 100)
3
Acad Bio
Name: ___________________________________
Date: _____________
Period: ___________
Quest D: Please go to the following web page.
http://www.biologycorner.com/projects/mitosis.html .
 Click on the Whitefish embryo and the onion root tip.
 For each organism, identify the stage of mitosis in the picture.
View 1
View 2
View 3
View 4
View 5
Whitefish
Onion
Quest E: Please go to the web page and use the information there to answer the following
questions. http://plaza.ufl.edu/alallen/pgl/modules/rio/stingarees/module/index.html
1. What is the role of the cell membrane in cell division?
2. What is the role of the nucleus in cell division?
3. What is the role of the centrioles in cell division?
4. What is the role of the microtubules in cell division?
Click on the tab, “The Functions of Mitosis”
5. What area the 2 major functions of mitosis?
Click on the tab, “Built-in Controls of Mitosis”
6. What are the 2 ways that cells “know” to stop dividing?
4
Acad Bio
Name: ___________________________________
Date: _____________
Period: ___________
Part II: Meiosis
In this internet lesson, you will review the steps of meiosis and view video simulations of cell division.
You will also view animations to help determine the whether a process is meiosis or mitosis.
Quest A: Please go to the web page, read the text on the page, review the animation, and use
the information there to answer the following questions. Lew-Port's Meiosis Page:
https://lpscience.fatcow.com/jwanamaker/animations/meiosis.html
1. How many chromosomes does the cell in this animation start with? _____________________________
2. The homologous pairs are represented by similar ____________________________________________
3. Copies of chromosomes are held together by the _____________________________________________
4. Each chromosome finds its ______________________________________________________________
5. Draw "crossing over" - using your pencil to shade in the areas that exchange parts.
6. How many chromosomes are at each pole of the cell? ________________________________________
7. During meiosis 2, chromosomes line up again along the cell's ___________________________________
8. Only _________ copy of each chromosome moves toward the poles, which means only _____________
chromosomes of the original six.
9. New membranes form around each _______________________________________________________
10. Each cell divides, forming a total of ______________ cells.
11. Meosis is also called _______________________________________________________________.
5
Acad Bio
Name: ___________________________________
Date: _____________
Period: ___________
Quest B: Please go to the web page, read the text on the page, and use the information there
to answer the following questions. Use the play/pause button to help you as you go through
the animations.
http://www.sumanasinc.com/webcontent/animations/content/meiosis.html
12. Read the introduction. Explain how sexual reproduction results in unique offspring.
(Click the "STEP THROUGH" button). Click the play button and read along as the animation progresses.
13. DNA replication takes place when? ___________________________________________________
14. Meiosis consists of two cell divisions: ________________________ & _______________________
15. Centrosomes (aka centrioles) migrate to ________________________________________________
16. The pairing of homologous chromosomes is called: _______________________________________
17. Crossing over points are called _______________________________________________________
18. What happens in metaphase I _________________________________________________________
19. What happens during anaphase I ______________________________________________________
20. What is interkinesis? _______________________________________________________________
21. In prophase II, each cells is [ diploid / haploid ] (circle)
22. In metaphase II, chromosomes line up in [ single | double ] file.
23. What happens during telophase II? _______________________________________
(Click to Conclusion)
24. Each of the four daughter cells produced by meiosis is [ identical / unique ]
(Click to Quiz)
25. With respect to meiosis, when does DNA replication occur? ____________________
26. When does crossing over occur? _________________
27. During which phase do chromosomes line up along the equator? __________________
28. During which phase does the nuclear membrane form around the chromosomes? _____________
6
Acad Bio
Name: ___________________________________
Date: _____________
Period: ___________
Quest C: Mitosis vs. Meiosis. : Please go to the web page and use the information there to
answer the following questions.
http://www.pbs.org/wgbh/nova/baby/
Click "How Cells Divide" then click on "Mitosis vs. Meiosis"
After viewing the animation, fill out the chart below, by placing a check in the box or boxes
to indicate which the event occurs in (some events might have checks for both mitosis and
meiosis).
Meiosis
Mitosis
Two cell divisions
Centrioles appear
Chromosomes pair up
Spindle fibers form
Two cell divisions
Cytokinesis
Four daughter cells
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Acad Bio