This document provides an introduction to microbiology. It defines microbes as microscopic organisms and discusses the major types, including bacteria, archaea, fungi, protozoa and viruses. While some microbes are harmful, others play important roles in human welfare through uses like sewage treatment and bioremediation. The document traces the history of microbiology from early microscopy to acceptance of germ theory and development of pasteurization, vaccination and chemotherapy. It also outlines the domains and kingdoms used to classify microorganisms.
Contribution of Various Scientist in the field of Microbiology,Louis Pasteur,Robert Koch,Alexander Fleming,Anton van Leeuwenhoek,Edward Jenner,Paul Ehrlich,Dmitri Iwanowski,M.Beijerinck
I'm Sorry this pptx presentation is not good enough but i use this as my report in our subjetct Earth and Life Science and the teacher is Happy :) Enjoy
Microbiology is the study of organisms that are usually too small to be seen by the unaided eye; it employs techniques—such as sterilization and the use of culture media—that are required to isolate and grow these microorganisms.
Contribution of Various Scientist in the field of Microbiology,Louis Pasteur,Robert Koch,Alexander Fleming,Anton van Leeuwenhoek,Edward Jenner,Paul Ehrlich,Dmitri Iwanowski,M.Beijerinck
I'm Sorry this pptx presentation is not good enough but i use this as my report in our subjetct Earth and Life Science and the teacher is Happy :) Enjoy
Microbiology is the study of organisms that are usually too small to be seen by the unaided eye; it employs techniques—such as sterilization and the use of culture media—that are required to isolate and grow these microorganisms.
To understand the basic concepts of the biology of microorganisms and its mechanism of action in host cells.
-Dr SUBASHKUMAR R
Associate Professor in Biotechnology
Sri Ramakrishna College of Arts and Science, Coimbatore
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This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
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This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
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It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
3. What Are Microbes?
• A microorganism is an organism that is
microscopic (usually too small to be seen
by the naked human eye).
• From our perspective, They can seem
Good, Bad, or Neither
4. True or False?
If all microbes were eliminated, humans
could not survive on earth.
We have identified most microbes.
Most microbes are potentially harmful to
humans or animals.
When we are healthy, our bodies do not
contain any microbes
9. Microorganism Names Tell a
Story…
• Names can be descriptive or honor a
scientist
• Names are “Latinized”
• Staphylococcus aureus refers to a grape-like
cluster (Staphylo-) of round (coccus)
golden colored (aureus) cells
10. Proper Names
• The name is italicized or underlined
• Only the first name (genus) is capitalized
• Often the first name is abbreviated
• Escherichia coli or E. coli
12. Microscopy
• 1665 Robert Hooke uses a microscope to
see individual cells.
• The beginning of Cell Theory: All living things
are made of cells that came from pre-existing cells.
• 1673 Leeuwenhoek observes live
microorganisms.
13. Spontaneous Generation VS. Biogenesis
• Spontaneous Generation: living things
come from nonliving things.
• Biogenesis: All living things come from
preexisting living cells
14. Francisco Redi 1668
Conditions Results
Three jars
covered
with fine net
No maggots
Three open
jars
Maggots
appeared
From where did the
maggots come?
What was the purpose of
the sealed jars?
Spontaneous generation
or biogenesis?
Johnathan Needham
1745
Conditions Results
Nutrient
broth
heated,
then placed
in sealed
flask
Microbial
growth
From where did the
microbes come?
Spontaneous generation
or biogenesis?
15. Spallanzani 1765
Conditions Results
Nutrient
broth
placed in
flask,
heated,
then sealed
No
microbial
growth
Spontaneous generation
or biogenesis?
Louis Pasteur
1861
Conditions Results
Nutrient broth
placed in
flask, heated,
not sealed
Microbial
growth
Nutrient broth
placed in
flask, heated,
then sealed
No microbial
growth
Spontaneous generation or
biogenesis?
17. Fermentation/Pasteurization
• Louis Pasteur was contracted by French
merchants to figure out why beer and wine
soured.
• He showed that good microorganisms changed
sugar to alcohol in the absence of air
• He showed that bad microorganisms changed
the alcohol to vinegar in the presence of air
• He showed the connection between food
spoilage and microorganisms.
18. Germ Theory
• Accepted thought was that disease was
caused by misdeeds
• 1860’s Joseph Lister began treating
surgical wounds with a phenol solution
• 1876 Robert Koch developed steps to
show that a specific microbe causes
a specific disease aka Koch’s
postulates
19. Vaccination
An ounce of prevention
• 1796 Edward Jenner small pox and cow
pox
• 1880 Louis Pasteur showed why vaccines
work
20. Chemotherapy
A Pound of Cure
• Treatment of disease by using chemicals
• 1910 Ehrlich discovers salvarsan
• Alexander Fleming and penicillin
– Antibiotic resistance
21. Study of Microbiology
• Bacteriology: Study of Bacteria
• Mycology: Study of Fungi
• Parasitology: Study of
Protozoa and parasitic worms
• Immunology: Study of
immunity
• Virology: Study of viruses
22. Microbes and Human Welfare
• Sewage Treatment
• Bioremediation
• Pest Control
• Recombinant DNA Technology
23. Microbes and Human Disease
• Normal flora or microbiota help prevent growth
of pathogens
• Every individual’s response to a pathogen is
different
• Emerging infectious diseases: New diseases
and diseases increasing in incidence
24. Do These Sound Familiar?
• Bird Flu
• Sars
• West Nile
• Mad Cow
• E. coli O157:H7
• Ebola
• Flesh-eating bacteria
• Aids
• Swine Flu H1N1