1. MADE BY K.ANANTHA KRISHNAN
MICROORGANISMS
MADE BY
K.ANANTHA KRISHNAN

2. THE LIVING ORGANISM WHICH WE CANNOT SEE WITH NAKED EYES ARE CALLED MICROORGANISM. THEY CAN ONLY BE SEEN WITH THE HELP OF COMPOUND MICROSCOPE.

3. CLASSIFICATION OF MICROORGANISM
MICROORGANISM CAN E CLASSIFIED INTO FOUR GROUPS:-
1.BACTERIA
2.PROTOZOA
3. ALGAE
4. FUNGI

4. WHERE DO MICROORGANISM LIVE?
MICROORGANISM CAN LIVE IN ANY ENVIRONMENTAL CONDITIONS. THEY ARE FOUND IN THE BODIES OF ANIMAL AND ALSO IN HUMANS. SOME MICROORGANISM LIVE ALONE LIKE AMOEBA.

5. MICROORGANISM IN OUR LIFE
SOME MICROORGANISM ARE HARMFUL TO US BUT SOME ARE BENIFICIAL. IN OUR DAILY LIFE EVEN IN COMMERCIAL USE AND ALSO IN MEDECINAL USE.

6. MICROORGANISM IN OUR DAILY LIFE
1.THEY FIXES NITROGEN IN SOIL WHICH ENHANCE THE FERTILITY OF SOIL.
2. THEY CONVERTS MILK INTO CURD.
3.THEY ARE ALSO USED IN MAKING PICKELS AND CHEESE AND MANY OTHERE FOOD ITEMS.

7. MICROORGANISM IN COMMERCIAL USE
THEY ARE USED TO PREPARE ALCOHOL.
THEY ARE USED TO PREPARE WINE
THEY ARE USED TO PREPARE ACETIC ACID.

8. MICROORGANISM IN ANTI BIOTICS
THEY ARE USED TO PREPARE ANTI- BIOTICS.
ANTI BIOTICS ARE THE MEDICINES WHISH KILL OR STOP THE GROWTH OF HARMFUL MICROORGANISM . STREPTOMYCIN, TETRACYCLINE AND ERYTHROMYEIN ARE SOME OF COMMONLY USED ANTI BIOTICS.

9. HARM CAUSED BY MICROORGANISM
DISEASE CAUSING MICROORGANISM ARE CALLED PATHOGENS.
MICROORGANISM CAUSE DISEASE IN HUMAN BIENGS AND ALSO IN PLANTS.
SOME MICROORGANISM SPOIL FOOD.

10. Use OF Preservatives.
THE MATERIALS USED TO CHECK THE GROWTH OF MICROORGANISM ARE CALLED PRESERVATIVES.
SOME COMMON PRESERVATIVES ARE:
PRESERVATION BY SALT
PRESERVATION BY SUGAR
PRESERVATION BY OIL VINEGAR
PRESERVATION BY HEAT AND COLD TREATMENTS

11. MICROORGANISM IN NITROGEN FIXATION
RHIZOBIUM A MICROORGANISM FIXES NITROGEN IN THE LEGUMINOUS PLANTS. IT LIVES IN THE ROOT OF LEGUMINOUS PLANTS. EXAMPLE: BEANS AND PEA.
SOME TIMES NITROGEN GETS FIXED BY LIGHTNING.

12. KILLING OF MICROORGANISM IN PREPARING OF MILK.
THE KILLING OF MICROORGANISM IN PREPARING OF MILK IS CALLED PASTEURISATION. IN THIS PROCESS MILK IS HEATED TO ABOUT 70 DEGREE FOR 15 TO 30 SECONDS AND THEN SUDDENLY CHILLED AND STORED. BY DOING SO, IT PREVENTS THE GROETH OF MICROORGANISM . THIS PROCESS WAS DISCOVERED BY PASTEUR.

13. CAUSED BY MICROORGANISM
SOME COMMON
HUMAN DISEASE
CAUSED BY MICROORGANISM

14. HUMAN DISEASE
CAUSATIE MICROORGANISM
MODE OF TRANSMISSION
TUBERCULOSIS
MEASLES
CHICKEN POX
POLIO
CHOLERA
TYPHOID
HEPATITIS
MALARIA
BACTERIA
VIRUS
PROTOZOA
AIR
AIR/CONTACT
AIR/WATER
WATER/FOOD
WATER
MOSQUITO

15. CAUSED BY MICROORGANISM
SOME COMMON
PLANT DISEASE
CAUSED BY MICROORGANISM

16. PLANT
DISEASES
MICRO-ORGANISM
MODE OF
TRANSMISSION
CITRUS
CANKER
RUST OF
WHEAT
YELLOW VEIN MOSAIC OF BHINDI
BACTERIA
FUNGI
VIRUS
AIR
AIR,
SEEDS
INSECT

17. SOME DISCOVERIES
WITH THE HELP OF
MICROORGANISM

18. ROBERT KOCH- DISCOVERED THE BACTERIUM WHICH CAUSES ANTHRAX DISEASE IN 1876.
EDWARD JENNER- DISCOVERED THE VACCINE FOR SMALL POX IN 1798.
LOUIS PASTEUR- DISCOVERED FERMENTATION IN 1857.

19. DID YOU KNOW?
1.BACTERIA HAVE LIVED ON THE EARTH FOR MUCH LONGER THAN HUMANS.
2.THEY CAN LIVE IN ANY ENIVIRONMENTAL CONDITION.
3.THEY CAN LIVE IN SPACE ALSO.
4.THEY CAN SURVIVE AT DEPTHS OF SEVERAL KILOMETERS.

20. END