Cell Theory
1. All living things are
made of cells
Which of the following is
made of cells?
a) Rock
b) Bacteria
c) Fish
d) Skin
e) Glass
f) Eyelashes
Cell Theory
2. Cells have structure
(they contain different parts with
their own jobs)
Cell Theory
3. All cells come from
other cells
Cell Theory
4. Cells contain DNA
or genetic information
2 Types of Cells
1. Eukaryotic = Has a
Nucleus
2. Prokaryotic = Has NO
Nucleus
To help you remember…
Pro = NO!
Eu = YES!
How do Cells Divide?
Mitosis Videos
Cell Cycle & Cancer : http://youtu.be/lpAa4TWjHQ4
Mitosis : http://youtu.be/gwcwSZIfKlM
As you watch:
Why is it important for your cells to divide?
What are the 4 main parts of Mitosis?
Why is it important for
cells to divide?
Helps you grow
Helps heal wounds
Replaces old, worn out cells
Before a cell divides…
Interphase
90% of cell life
Cell is working, doing its job
Towards the end, begins to
make a copy of its DNA
Steps of Mitosis: PMAT
1. Prophase
P = Prepare
Cell makes a copy of DNA
DNA condenses into
chromosomes
Steps of Mitosis: PMAT
2. Metaphase
M = Middle
Nucleus “dissolves”
Chromosomes line up in the
middle of the cell
Steps of Mitosis: PMAT
3. Anaphase
A = Away
Chromosomes are
pulled apart
Steps of Mitosis: PMAT
4. Telophase
T = Two Twins
Splits into two identical
nuclei and cells
A)
B)
Identify the Steps of
Mitosis
C)
D)