[Biology Form 4] Being Multicellular

A multicellular organism is made up of millions of cells, all of which carry out specific and different functions depending on their shapes and structures, and the organelles contained in them.

In multicellular organisms, cells make up tissues, tissues make up organs and organs make up systems.

In an entity, they cooperate with one another and ensure the organism carry out its seven main living processes.

The kind of organisation is extremely necessary to allow different systems to carry out specific functions and to enable the organism to be a complete and functional individual.

Cell organisation

1. To gauge whether you know how multicellular organisms from the plant and animal kingdoms are organised, as the following table.
   

   Plant kingdom	Level of organisation	Animal kingdom
   Hibiscus plant	Organism	Man
   Shoot system	System	Circulatory system
   Leaf	Organ	Skin
   Vascular tissue	Tissue	Connective tissue
   Mesophyll palisade cell	Cell	Epithelial cell

   
   
   
2. Another example of how two other multicellular organisms are organised.
   

   Plant kingdom	Level of organisation	Animal kingdom
   Maze	Organism	Rat
   Root system	System	Circulatory system
   Root	Organ	Lungs
   Ground tissue	Tissue	Connective tissue
   Parenchyma	Cell	Red blood cell