EXPERIMENT 1: OBSERVATION OF MITOSIS IN A PLANT CELL
Data Tables
Table 1: Mitosis Predictions
Predictions
Supporting Evidence
Table 2: Mitosis Data
Stage
Number of Cells in Stage
Total Number of Cells
Calculated % of Time Spent in Stage
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
Table 3: Stage Drawings
Cell Stage
Drawing
Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis
Post-Lab Questions
1. Label the arrows in the slide image with the appropriate stage of the cell cycle.
A ___________________
B ___________________
C ___________________
D ___________________
E ___________________
F ___________________
2. In what stage were most of the onion root tip cells? Does this make sense?
3. As a cell grows, what happens to its surface area-to-volume ratio (hint: think of a balloon being blown up)? How does this ratio change with respect to cell division?
4. What would happen if mitosis were uncontrolled?
5. How accurate were your time predictions for each stage of the cell cycle?
6. Discuss one observation you found interesting while looking at the onion root tip cells.
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