Download Lab Activity-Stages of Cell Cycle

Lab Activity-Stages of Cell Cycle
Stage
Interphase
Plant
Animal
Prophase
Metaphase
Anaphase
Telophase
Tasks:
Lab Prep: Train your brain to ID stages of the cell cycleDo cell ID activity: http://www.biology.arizona.edu/cell_bio/activities/cell_cycle/01.html
1. Take digital picture(s) of cells undergoing mitosis on High Power – make sure there is a
minimum of 50 cells and max of 150 cells.
a. If you are looking at onion (Allium) the cells undergoing mitosis will be near the tip.
b. If you are looking at Whitefish blastula (developing fertilized egg) they will be spread
between the various sections (slices on the slide).
2. Print out the images and for each cell that is in focus, identify and record what stage of the cell
cycle it is in.
3. Calculate what percentage of cells are in each stage of mitosis
4. Graph the number vs stage. Use a Pie Chart. This should give you an approximate cell cycle.
Since you are looking at a “snapshot” of an area of active cell division, stages that take longer
will have more visible in that stage. Since stages that are short will not be likely to be caught in
that stage, one can conclude that they will be “caught” less often.
5. If it took a cell 1,000 minutes to complete the cell cycle, then how long would it spend in each of
the individual stages?
6. Optional: Compare animal and plant mitosis.-ask teacher if the class is doing that step this year
Lab Activity-Stages of Cell Cycle