Biology – organism to cell

1) The organism is the living being that is the human, the animal, the tree.

2) The organ are the liver, the heart, the lungs and others of the human being, and the organs together they make functions like digestion, respiration and etc and complying a function they are in a system like digestive system, circulation system, locomotive system.

3) And in the organs the cells are organize in tissues, when you cut a organ you have the impression that they are purses like stomach, liver, heart and you went more internal and see that you cut other tissue and not a mass, are tissue separated and different  one of the other, and this form of the organs are tissues, and the tissues are made of cells, Dura-mater are a tissue that protect, skin and mucosa are tissues, the internal of a stomach is a tissue and there produces the stomachs juices, are the cells in the tissue that make the stomach juice.

4) The cells are the smaller biological unit, in a cell had life and functions and of course you could subdivide a cell but isn’t a biological unit but a cell part a organelle and organelle is like a cell organ, bio means life

Rute Bezerra de Menezes Gondim