ORGANIZATION LEVELS OF LIVING

ORGANISM

Compiled by. Risda Muli, S.Pd

Objectives

After learning this chapter you will be able to :Explain organization levels of living organismsExplain that the body of an organism is make up of complex structureExplain that structure of organism life body is built of moleculesExplain that basic unit of living organisms is cellExplain that molecules, cell, tissue, organ, organ system, individual, population, ecosystem, and biome make organization of living organism.

Organization Levels of Living Organism

a. MoleculeMolecule is the smallest units in which two or more atoms of the same element or different ones are bounded together.Ex : Carbohydrate, Lipides, Protein., Nucleic Acid.

b. CellCell is the smallest unit having the capacity to live and reproduce, either independently or as part of a multicellular organisms. Ex : Red blood cell, Muscular cell, Sperm cell,etc.

An organized group of cells with the same structure and functions. Ex : nervous tissue, muscle tissue.

c. Tissue

A group of several tissues form organ. Ex :in animals (Heart, brain), in Plants ( root, stem)

d. Organ

Organ system consists of two or more organs and has specific functions. Ex : digestive system, respiratory system, regulatory system.

e. Organ Sytem

Number of various organ systems will form organism.

f. Organism

The population of all species occupying the same area. Ex : beach community.

g. Community

A community and its physical environment (such soil and water).

h. Ecosystem

It is a large communities on earth

i. Biome