Cellular Differentiation 4a - Coggle Diagram
Cellular Differentiation 4a
The process by which a cell
expresses certain genes
produce proteins characteristic
for that type of cell.
This allows a cell to carry out
Cell control and specialisation
When a new cell is produced by mitosis it is
non-specialised or undifferentiated.
Specialisation depends on which genes are switched on and off
Cells differ because genes can be
switched on and off
Tissue Stem Cell
Can only form a
of cell types.
Main function is to maintain
growth and repair
of the body.
Are more limited than embryonic stem cells and so are known as
at the tip of the root and the shoot –
adding length to the plant.
allow the stems thicken.
A group of
unspecialised plant cells
throughout the life of a plant.
Embryonic Stem cells
Embryonic stem cells become
differentiated to all possible types
This is known as
Before a cell has differentiated, or specialised
, it is called a stem cell.
Stem cells are involved in growth and repair.
Why differentiate and specialise?
CAUSES OLD OLD OLD AGEEEE
The only 2 cells which can
STEM and CANCER cells
limit to the number of times they can divide