This is a lab that I do with my Biology I students to help them with the concepts of mitosis and cell division. This is a 4 page document for the student, with an additional 3 pages for the teacher.
1) To observe the stages of mitosis in prepared slides of onion roots tips and the whitefish blastula.
2) To compare the stages of mitosis in plant and animal cells.
3) To determine how much time a cell spends in each stage of mitosis.
Materials: Microscope, Prepared slide of onion root tip mitosis, Prepared slide of whitefish blastula
The students will begin by observing prepared slides. They will identify and draw the stages of mitosis they see on the slides. In the second part of the lab, students will count the number of cells in each phase. This data will be used to determine the percentage amount of time spent in each stage.
The document is set up so that students will fill in their drawings, data and answers on the handouts as they go. If you need to conserve paper, the student can easily record this information on their own notebook paper.
This activity covers mitosis only. Meiosis is not addressed in this activity.