Download Cell Division Webquest

Cell Division Webquest
Name ________________________________________ Date ______________ Hr _________
Mitosis Tutorial
http://www.cellsalive.com/
On the left side of the screen is a navigation bar, click on the link to “MITOSIS” Read the text on this page
and view the animation, you can slow down the video by clicking step by step through the phases.
1. List the stages of mitosis
2. 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.
_____________________________________________
Watch the video carefully.
3. 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 centrioles.
What happens to the centrioles during mitosis? ____________________________________
Meiosis Tutorial
Lew-Port's Meiosis Page
Go to http://www.lewport.com/10712041113402793/lib/10712041113402793/animations/meiosis.html
--> click on Meiosis
How many chromosomes does the cell in this animation start with ? __________________
The homologous pairs are represented by similar ________________________
Copies of chromosomes are held together by the _____________________________
Each chromosome finds its __________________________________________
Draw "crossing over" - using your pencil to shade in the areas that exchange parts.
How many chromosomes are at each pole of the cell? ___________
During meiosis 2, chromosomes line up again along the cell's ___________________________
Only _________ copy of each chromosome moves toward the poles. Which means only _________
chromosomes of the original six.
New membranes form around each ____________________________
Each cell divides, forming a total of ______________ cells.
Mitosis vs. Meiosis
http://www.pbs.org/wgbh/nova/baby/divide.htm
--> 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
Onion Root Tip - Online Activity
http://www.biology.arizona.edu/cell_bio/activities/cell_cycle/cell_cycle.html
Read the introduction, then click the “next” button.
You will have 36 cells to classify. When you’re finished, record your data in the chart below.
Interphase
Prophase
Metaphase
Anaphase
Telophase Total
Number of cells
36
Percent of cells
100 %
(calculate: number of cells
divided by total cells x
100 )
The Cell Cycle Tutorial
http://nobelprize.org/educational_games/medicine/2001/cellcycle.html
Interphase: the time between when a cell is formed and mitosis is not just a resting time, but a
complicated period that involves many activities in the cell. This is a neat site that allows you to control
the activities in the cell that help the cell divide.
Follow the directions and try your best
Pay attention to what you do wrong and try to improve each round
 What occurs during the G1 phase?

What occurs during the S phase?

What occurs during the G2 phase?
When you get to the M phase, think carefully about how mitosis starts…this will help you make the right
decision on what to do to get through!
Having trouble getting through? Visit this site for clues to get through!
 http://www.cellsalive.com/cell_cycle.htm

To prove you got through to the end of this challenge, explain what the movie is about at the end
of the activity: