Lab 9: Mitosis
Course ID/Section: Date:
Answer the questions and report your data in this fillable PDF using the observations and results
you recorded in your lab manual while performing the experiments. Save the completed PDF file
with your last name and lab number and submit the report as directed by your instructor. (For
Consider the Concepts
1. Cell division in prokaryotes is a fairly simple process that occurs rapidly. Describe two reasons
that cell division in eukaryotes is more complicated.
Part 1: Interphase
2. Complete the following table with the data you collected during the lab activity counting interphase
and mitosis cells in the onion root tip microscope image.
# of cells in interphase
# of cells in mitosis
total # of cells counted
percentage of time cells spend in interphase
hours per day cells spend in interphase
3. If you looked at a region of cells in the body of the onion rather than in the onion's root tip, how
would your results differ?