Module 5 Cell Division

Lesson 3.5.3

Lesson 3—Mitosis

 

Get Focused

You are not the same person you were a year ago. In fact, you are not the same person you were a few seconds ago. Even as you are reading this, your cells are growing, dying, and dividing, again and again. New cells replace the old cells, leading to an eventual complete turnover of many body tissues over a matter of a few years. This continuous cell replacement maintains your body and keeps you looking like you. Yet your appearance does change over time. Why? The replicate cells that replace worn out and damaged cells should be exact copies of their predecessors, but are they?

 

In this lesson you will learn more about the M phase, or mitosis phase of the cell cycle. You will also learn to describe and explain what is occurring in the different phases of mitosis. And finally, you will learn why this type of growth is important, and how new cells that result from mitosis relate to their parent cell.

 

In this lesson, the following focusing questions will be examined:

• How are the different phases of mitosis identified and described?

• How does mitosis maintain consistency in plants and animals?

This lesson will take approximately 80 minutes to complete.

 

Module 5: Lesson 3 Assignment

 

You will complete a lab on cell division for assessment.  You will use information collected in your cell division lab to complete the online assignment.

Bio30 3.5.3 online assignment.

The other questions and activities in this lesson are not marked by the teacher; however, you should still attempt all of the work offered here. They are designed to help you review important information and build key concepts that may be applied in future lessons.

Here is a tutorial video for this lesson that you can watch if it suits your learning style.  Bio30 tut#3.5.3 Meiosis