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!

• MULTICELLULAR

• DIFFERENTIATION

• TISSUES

• ORGANS