Worksheet & Review

Homework: Using the handout of onion root tip cells under the microscope, cut  the paper into individual cells and sort them into IPMAT [ Interphase, Prophase, etc...] Don't write on the cells, and skip the cells that are really too blurry to tell! Glue them into a circle --around the edges of the circle, like a clock face, in the order of the cell cycle.  This will give us an idea of how much time this plant spends in each stage. Make it neatly done, label each stage, use good paper, and if you do not understand the directions, CALL me!  Do it right or do it over!

 ALSO - READ CAREFULLY!
Count up how many cells are in each stage, and make a table with 3 columns, like this:

	Number  of cells	% time in this stage
Interphase
Prophase
Metaphase
Anaphase
Telophase

 + Cytokinesis

To find the percentage of time in each stage, divide the "Number of cells" by the total number of cells on the page, and multiply by 100.

Add a Title at the top of the page, and a sentence or two of Summary at the bottom.

When you are done, check to see if you followed the directions completely.
 [If your copy of the handout gets messed up, go here: mitosis onion cells image.]

For reference: here is a website that has good pictures and descriptions.  http://micro.magnet.fsu.edu/micro/gallery/mitosis/mitosis.html

ALSO< Please turn in your chapter 3 review question & answers on Monday. [note to moms of the younger kids: Feel free to modify the lesson according to your own judgement and time constraints.]