Introduction
Revise cell structure that was covered in the week 5 and 6 lessons.
Today's topic is on cell cycle.
The cell cycle can be thought of as the life cycle of a cell. In other words, it is the series of growth and development steps a cell undergoes between its “birth”—formation by the division of a mother cell—and reproduction—division to make two new daughter cells.
Cells have the ability to divide continuously.
The division of somatic cells which results in growth, is known as mitosis.
Uncontrolled mitosis can result in cancer.
Task
Study the 4 stages of Mitosis and answer the questions that follow.
1. In which stage of mitosis is this cell? Give 3 reasons.
2. How many chromosomes are shown in this picture? and how many chromatids?
3. In which stage is the cell below? Give 3 reasons.
4. In which stage of mitosis is the cell below? Give 3 reasons.
Process
Study the following stages of mitosis and fully understand what happens at each stage to be able to complete the task.
You may use the YouTube video below and your own textbooks.
Evaluation
Marking rubric
| Questions | Marks |
|---|---|
| Stage of mitosis | 1 |
| Reasons | 3 |
TOTAL 16
Conclusion
By the end of this lesson learners will be able to know the cell cycle and mitosis.
Know and be able to distinguish between Chromosomes and chromatids.
Fully understand the role of mitosis.
Understand cancer (brief description)
Credits
Here are some of the resources you may use to have full understanding of this lesson.