It discuss about what is microbes, types of microbes, where its founds, why it plays important in human life, main functions like agriculture, industry and medicines.
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Language: en
Added: Jun 20, 2021
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USES OF MICROBES
DR. C. BEULAH JAYARANI
M.Sc., M.A, M.Ed, M.Phil(Edn), M.Phil(ZOO), NET, Ph.D(Edn)
ASST. PROFESSOR,
LOYOLA COLLEGE OF EDUCATION, CHENNAI -34
MICROBES
Microbes or micro
organisms are minute living
things that are usually
unable to be viewed with
the naked eye.
The study
ofmicroorganismsis
called microbiology.
TheFather of
Microbiology is Antonie
van Leeuwenhoek
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TYPES OF MICRO ORGANISMS
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MICROBES
•
At present Microorganismscan be
bacteria, fungi, archaea or protists.
The termmicroorganismsdoes not
include viruses and prions, which
are generally classified as non-
living.
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WHERE WILL MICRO ORGANISMS BE FOUND?
•Microorganisms are foundin almost every habitat
present in nature, including hostile environments
such as the North and South poles, deserts,
geysers, and rocks.
•They also include all the marinemicroorganismsof
the oceans and deep sea too.
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HOW IT’S IMPORTANT IN OUR DAILY LIFE?
•Each human body hosts 10 microorganismsfor
every human cell, and thesemicrobescontribute to
digestion, produce vitamin K, promote development
of the immune system,and detoxify harmful
chemicals.
•Microbes are essentialto making many foods we
enjoy, such as bread, cheese, and wine.
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WHY WE NEED MICRO ORGANISMS?
•Microorganismsare useful in producingfoods,
treating waste water, creating biofuels and a wide
range of chemicals and enzymes.
•They are invaluable in research as model organisms.
•They have been weaponizedand
sometimesusedin warfare and bioterrorism
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USAGE OF MICROORGANISMS IN OUR DAILY LIFE
•Microbeslike bacteria and fungiact on the bodies of dead
plants and animalsand convert them into simple
substances.
•These substances are used by other plants and animals.
•Removal of dead bodies by the action
ofmicrobeskeepsourplanet clean.
•Bacteria are also used in sewage treatment, waste
organic matter etc.,
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OTHER USES OF MICROORGANISMS
•1.
Production of Antibiotics
•2. Production of Dairy Products
•3. Production of Alcoholic Beverages
•4. Production of Bread making
•5. Production of Food Yeast
•6. Production of Organic Acids
•7. Production of Vitamins
•8. Improving the agriculture
•9. Production of Vaccine
•10. Production ofinsecticides
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USES OF MICROBES
AGRICULTURE
INDUSTRY
MEDICINE
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AGRICULTURE
•Microbes are harmful but some microbes are useful for our
day to day life.
•Used as, bio –control agent
•Biological fertilizer/Bio fertilizer
•Used as herbicides and pesticides
•Microbes control insects pest, pathogens and weeds to be
controlled
•Bio control agents are expensive, safe than chemical
pesticides
•Bio fertilizers are cheap, safe renewable resources rather
than chemical fertilizers
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CONTD.,
•Used for help high yield
by control of disease
•Bacteria and fungi plays vital
role in agriculture
•Microbes increases soil fertility
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INDUSTRY
FERMENTATION
PRODUCTS
WINE
CHEESE
BREAD
YOGURT
PICKLESCURD
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PRODUCTION OF ORGANIC ACIDS, ENZYMES
AND VITAMINS
•Oxalic acid, acetic acid, citric acid are produced by
“ASPERGILLUS NIGER”
•Enzymes like lipases, protases and glucoseare derived from
microbes
•Yeast are rich source of vitamin-B complex.
•Easy to maintain and cultivate the microbes
•Microbes are easily manipulated genetically.
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MEDICINE
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ANTIBIOTICS
•Medicines are called
antibiotics
•These medicines are produced
from bacteria and fungi
•Streptomycin, tetracycline,
penicillium and erythromycin
are some of the commonly
known antibiotics
•These medicines kill or stop
the growthof the disease
causing micro organism
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VACCINES
•These are produced by killing are
making the microbes inactive
•These inactive microbes are unable to
cause disease but stimulate the body to
produce antibodies against the antigen
in the microbes
•MMR-measles, mumps and rubella
•BCG-tuberculosis
•POLIO VIRUS-polio
•TETANUS TOXOID (TT)-tetanus
•HEPATITIS B-hepatitis B
•DITPHERIA TOXOID-Diptheria
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REFERENCE
“SCIENCE READER”
Tamil Nadu text book
NCERT Books
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