Monday - Mitosis

Happy Monday

Which is heavier, a pound of bricks or a pound of feathers?

Question of the

Day:

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

Match

Match the definition to the correct term.

• ____ is divided into into G1, S, and G2 phases.

• During _______ DNA is replicated.

• Cells prepare for division during this phase.​

• During ________ the cell grows.

Interphase

S2

G2

G1

• Interphase

• S2

• G2

• G1

Poll

Fist of Five

• 5

• 4

• 3

• 2

• 1

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

Labelling

Label the cell structures correctly.

Drag labels to their correct position on the image

spindle

chomatin

nuclear envelope

centriole

sister chromatids

Word Cloud

How many identical cells does mitosis create?

Poll

Fist of Five

• 5

• 4

• 3

• 2

• 1

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

Word Cloud

What does the P stand for in PMAT?

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.

Open Ended

What happens during Metaphase?

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….