Power Point Presentation
By Charmaine Atkinson
•Your body is made up of millions of cells.
•Mammals and plants are multicellular which
means they have many cells.
•Each type of cell carries out a different
function.
Differentiation
• This is the development of a young, unspecialised
cell into a mature specialised cell.
• This enables cells to carry out a particular
function.
• Cells that are similar in shape and have a common
function are often collected together and attached
to each other.
• They form a tissue.
• A tissue is a collection of DIFFERENTIATED
CELLS which are specialised for a particular
function within the organism.
An example of a tissue.
• We know that a tissue is a group of cells with a
similar structure.
• So, if we look at skeletal muscle, this is a TISSUE
made up from skeletal muscle cells.
What is an ORGAN?
• Different tissues are grouped together to make an
ORGAN.
• An organ contains several different tissues, all of
which contribute to its overall function.
• An example of an organ is the pancreas.
• Organs work in groups called organ systems, eg,
respiratory system.
KEY WORDS!
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MULTICELLULAR
DIFFERENTIATION
TISSUES
ORGANS