Aim: How does the nucleus control the activities of the cell?

There are two main functions of the nucleus:

1. Contains the codes protein

2. Cell division

Task

Arrange the cell according to how you think the cell reproduces

Questions:

What do you notice about the first and last cell?

How are they the same/different ?

K-W-LWhat do you know, want to know about cell

division?

K W L

How does the nucleus direct the cell to reproduce ?

Interphase Prophase Metaphase

Anaphase Telophase Interphase

Part I Information Gathering: the story of Sheena

Read the story of Sheena

Gather information on cancer

Fill out the worksheet and use your text as a reference pg 245

What information did you find about the cell cycle?

• Each group will answer one question

Explain what happens to the cell and the chromosomes during each phase.

Historical Perspective of Cancer

Aim: What are the changes in the nucleus during cell division?

Each cell is identical to the mother cell

• Artificially colored bacteria cells dividing by mitosis, as seen using a scanning electron microscope

Chromosome duplication

Chromosomes can be seen when they

double

DNA's Feat: Making Two Out of One

Two

Strands

Of

The

Same

Chromosome

Have

Formed

Mitosis

Start with one cell

End with two cells each with the exact number of chromosomes

HW

• Text page 243 Questions 1 & 3

• Access the power point on SITHS homework for Nov 2

“What are the major changes in the nucleus during cell division”

Fill in Part 3 of Sheena’s story

Class notes on Mitosis