The Level Of Organization

 THE LEVEL OF ORGANIZATION:

The levels of organisation in living world are based on chemical foundation. All the living organisms are made up of cells and the protoplasm of cell is the physical as well as chemical basis of life. These levels are as follows:

1. Atomic level of organization:

All the matter is made up of elements, which is composed of atom (a: not, form: cut). Each atom is made up of sub-atomic particles, such as electrons, protons and neutrons.In nature, there are more than 100 kinds of elements and among these 16 elements are called as bio-elements, which are vital for life. Only six elements such as C, H, O, N, S and P are called basic elements of life. 

2. Molecular level of organization:

Molecules are formed by the binding of atoms. These organic molecules of cells are called as bio-molecules. These are constructed in great variety and complexity. They are classified as micro-molecules and macro￾molecules.Glucose, amino acid and fatty acids are micro-molecules, where as carbohydrates, proteins and lipids are macro-molecules. The units of micro-molecules combine together to form macro-molecules.

3. Cellular level of organization:

The biomolecules when work together in the form of suspension, It iscalled Protoplasm. Protoplasm is the combination of organic and specificinorganic substances. When protoplasm work in the form of a unit, this is called Cell. Cell is the basic unit of living organisms. When similar type of cells organize together in a group, called tissues. The different types of tissues arranged in a particular manner to work together are called Organs.

Organs of different types work in a co-ordinated manner to perform a function is called Organ-system. When different organ-system function in co-ordination in as a unit, they form a body or Multicellular Organism.

4. Taxonomic level:

There is another level of organization which is related with living organisms. The Species is the smallest unit of taxonomic level of organization, which includes morphologically similar living organisms which inter-breed and produce fertile offspring.

5. Population level:

All the members of a species, living in specific habitat are called  Population. A group of parrots living on tree, is called parrot population.

6. Community level:

The members of different species living in specific habitat are called as Community. A group of different kind of birds, living on tree, is called as bird community.

7. Ecological system:

Communities always depends upon their non-living environment in a  reciprocal interaction for their survival. For example oxygen for respiration is obtained from environment and in turn given out CO . This 2 interaction is called Ecosystem or Ecological system.

8. Biosphere level:

The part of earth where life exists is called biosphere. It consists of different kinds of eco systems.