Lesson 3 – Cell Cycle
1.2 Cell Growth and the cell
cycle
Bell Task
On your desks draw out and label the
stages of mitosis.
What is the Cell Cycle?
Cells can only arise from the division of
existing cells. The cell cycle starts from
the division of a mother cell through to
the time when that daughter cell divides.
Length of the Cell Cycle?
The length of time it takes to complete
the cell cycle varies.
Use your monograph to make a table to
show the different lengths for different
cells.
The Cell Cycle
G1 – Gap 1
S - Synthesis
G2 – Gap 2
M – Mitosis
Interphase
What happens during
Interphase?
Cell growth and
synthesis of
organelles
DNA replication
Cell growth and
synthesis of
organelles
Where does mitosis fit in?
Mitosis describes the separation of the
chromosomes. It is just one part of the
cell cycle. In the cycle it is shortened to
M.
The division of the cell into 2 is called
cytokinesis – CK.
Mitosis
Mitosis is made up
of 4 subphases that
can be distinguished
if you look at cells
through a light
microscope.
Mitosis ends with Cytokinesis – the splitting
of the cell in two.
How to Remember
I Put My Arm There
Interphase
Prophase
Metaphase
Anaphase
Telophase
Your Task
1. Carefully read pages 8-9 in your monograph.
2. Carefully read pages 24-28 in Scholar.
3. Answer all the questions in scholar.
4. Either:
a) make a poster showing all the stages in the
cell cycle including detail of all of the
subphases of mitosis OR
b) Write an extended response on the stages
of the cell cycle.
5. Carefully read pages 11-12 in the monograph
and 28-31 in Scholar and make your own notes
on this. This is the basis for next lesson.