Science: Ms. Smith Your Name
Period#
Cell Mitosis
Date
onion root cells
Mitosis is the process of cell division.
For this lab we observed slides of
onion root cells in various stages of
mitosis. We identified the stages each
cell displayed for separate areas of
the slides, areas 1,2 & 3. We then
totaled these figures and calculated
the percentage of the cells that were
identified in each phase. We then
calculated the amount of time (in
minutes) that the cells spend in each
phase of mitosis over a 12 hour period.
Phase Area 1 Area 2 Area 3 Total % Time
Interphase 30 23 29 82 75% 537
Prophase 7 8 5 20 18% 131
Metaphase 1 0 3 4 4% 26
Anaphase 0 1 1 2 2% 13
Telophase 1 1 0 2 2% 13
Totals 110 720
Prophase
Metaphase
Salamander skin & pea root cells
Cells Prophase Metaphase Anaphase Telophase Total
Salamander 60 50 6 70 186
Pea Root 80 40 4 12 136
Telophase
Anaphase