Monday - Mitosis

Cell division is part of

the cell cycle

Chapter 3.2 - Page 80

Objective of the Day

●Today, I will be able to explain how cells divide
through mitosis.

Reminders

1. Homework DUE TOMORROW
2. Quiz Friday

The Stages of Mitosis

There are 5 stages:

● Mitosis is the process of cell division that results in two identical daughter cells.

● It is essential for growth in eukaryotic organisms!

How do we go from this to this?

A/B Think-Pair-Share

Mitosis is where a cell
divides to create two

identical cells, and DNA is

replicated.

Partner A: What do
you think happens to

DNA during the S

phase?

Partner B: Why is cell

growth important

before mitosis?

9

CENTRIOLE

SISTER

CHROMATIDS

CHROMATIN

NUCLEAR
ENVELOPE

SPINDLE

9

CENTRIOLE

SISTER

CHROMATIDS

CHROMATIN

NUCLEAR
ENVELOPE

SPINDLE

How does Mitosis Happen?

There are five

stages:

Prophase

Use PMAT!

It uses the first
letter of each

phase.

P-Prepare
M-Middle

A-Apart/away

T-Two

​Metaphase

​Anaphase
Telophase

​Cytokinesis

REVIEW PMAT

Using PMAT:
1.

What does the P
stand for?

2.

What happens
during Anaphase?

Use PMAT!

It uses the first
letter of each

phase.

P-Prepare
M-Middle

A-Apart/away

T-Two

How does Mitosis Happen?

Stage 1: Prophase

● The chromosomes (DNA)

reduce.

● Prophase is like getting ready

for a big performance.

Did chromosomes in prophase copy themselves
in a previous stage?

Hint: We have talked about this stage before.

How does Mitosis Happen?

Stage 2: Metaphase

●Metaphase is where the chromosomes
line up in the middle of the cell.

●Spindle fibers make sure each
chromosome is correctly positioned,
preparing for the next step in the cell
division.

Exit Ticket: (Write a complete sentence)

1.

Write one thing you learned about PMAT and one thing

you learned about prophase.

Name of Student

1. PMAT stands for…..
2. During prophase….