Biotechnology is an industry based on the use of living organisms, cell cultures and biological processes for the production of products useful to the people ' s economy, medicine and veterinarians for the development of an ecologically sound human and animal habitat. Biotechnology processes are widely used to produce important biologically active substances (amino acids, nucleosides, fermentals, vitamins, polyenased fatic acids, antibiotics, vaccines, serums,

hormones, pheromones, etc.) used as safe food supplements, medicines, veterinary products, pesticides to protect plants from disease and pests, bio fertilizers and plant growth stimulants. The development of genetic and cellular engineering has provided biotechnology with valuable products such as human and animal proteins (interferons, interlayers, growth hormone, human insulin, monoclonal antibodies, etc.) used to treat infectious diseases,

hormonal disorders, cancer therapy and diagnostics, for transplants of donor bodies. The role of biotechnology in fuel production (biogas, bioethanolas, biodiesel) will increase significantly, with cleaner fuels, as the combustion of such substances results in the formation of water and carbon dioxide, solvents (auceton, isopropanol), primary products for large and thin chemical synthesis based on renewable vegetable and animal raw materials

(In Brazil, there is already a technological way to produce bioethanol from renewable raw materials - wood that is in the Amazon flat. Biotechnology contributes significantly to monitoring and preventing environmental heating of natural and technological toxic compounds contained in domestic waste, gasoline emissions and wastewater of industrial plants. Methods of biotechnology are used also for environmental clean-up