Module 5

Module 5—Cell Division: The Processes of Mitosis and Meiosis

Lesson 3—Mitosis

 

Get Focused

 

You are not the same person that you were a year ago. In fact, you are not the same person you were a few seconds ago. Your cells are constantly growing, dying, and dividing. New cells replace the old cells, leading to an eventual complete turnover of many body tissues. This continuous cell replacement maintains your body and keeps you looking like you. Yet your appearance does change over time. Why? The replicated 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. 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?

Module 5: Lesson 3 Assignment

 

Your teacher-marked Module 5: Lesson 3 Assignment requires you to complete a lab on cell division for assessment.

 

Download a copy of the Module 5: Lesson 3 Assignment to your computer now. You will receive further instructions about how to complete this assignment later in the lesson.

 

You must decide what to do with the questions that are not marked by the teacher.

 

Remember that these questions provide you with the practice and feedback that you need to successfully complete this course. You should respond to all of the questions and place those answers in your course folder.

 

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