Objective – Identify positive & negative effects of microorganisms; Identify role of science in the development of
understanding that led to positive uses (i.e., Pasteur established the existence, growth, and control of bacteria; Fleming
isolated and developed penicillin).
Beneficial Uses Microorganisms
Microbe
Bacteria
 Artificial
Sweeteners
 Vinegar
 Olives
 Corn Syrup
 Buttermilk
 Chocolate
 Sauerkraut
 Soy Sauce
 Yogurt
 Cheese
 Pickles
Algae




Pudding
Sushi
Ice cream
Marshmallows
Fungi







Blue Cheese
Bread
Chocolate
Cheese
Olives
Peanuts
Soy Sauce
Objective – Identify positive & negative effects of microorganisms; Identify role of science in the development of
understanding that led to positive uses (i.e., Pasteur established the existence, growth, and control of bacteria; Fleming
isolated and developed penicillin).
Diseases Caused By Microorganisms
Microbe
Bacteria









Botulism
Bronchitis
Botulism
Salmonella
Pink Eye
Cavities
Strep Throat
Cavities
Pneumonia
Protist




Malaria
Giardiasis
Amebiasis
Cyclospora
Fungi
 Athlete’s
Foot
 Pneumonia
 Ringworm
Objective – Identify positive & negative effects of microorganisms; Identify role of science in the development of
understanding that led to positive uses (i.e., Pasteur established the existence, growth, and control of bacteria; Fleming
isolated and developed penicillin).
Three Ways to Transfer Disease
Through
touching places
with germs.
Through air (people
don’t cover mouth
when coughing/
sneezing.
Through
improperly cooked
or stored food.
Objective – Identify positive & negative effects of microorganisms; Identify role of science in the development of
understanding that led to positive uses (i.e., Pasteur established the existence, growth, and control of bacteria; Fleming
isolated and developed penicillin).
Three Ways to Prevent Disease
Wash your
hands
frequently.
Cover mouth with
arm when
coughing and
sneezing.
Cook and
store all foods
properly.
Objective – Identify positive & negative effects of microorganisms; Identify role of science in the development of
understanding that led to positive uses (i.e., Pasteur established the existence, growth, and control of bacteria; Fleming
isolated and developed penicillin).
The Microorganisms Hall of Fame
1595
1670’s
Zacharias Janssen
Anton van Leeuwenhoek
Invented the
microscope.
Improved the
microscope; discovered
bacteria and protists.
1790’s
Edward Jenner
Developed the first
vaccine against
smallpox.
1860’s
1840’s
Ignaz Semmelwiess/
Oliver Wendell Holmes
1860’s
Joseph Lister
Encouraged doctors to
wash hands after seeing
a patient.
Recommended
disinfecting operating
rooms and instruments
between operations.
1880’s
1928
Louis Pasteur
Robert Koch
Sir Alexander Fleming
Helped prove germ theory
of disease; developed
pasteurization (rapid
heating to 160o F. for one
minutes).
Proved the germ theory
of disease.
Discovered the
penicillium fungus
produced an antibiotic.