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Transcript
What Are Microbes?
By: Cristina Lopez
Is this a microbe?
Microbe
• A microbe is any living thing that spends its life at a size
visible sometimes only with a microscope. It is too tiny
to be seen with the naked eye. Microbes are the oldest
form of life on Earth. Some types have existed for
billions of years. They may live as individuals or cluster
together in communities. Microbes live in the water
you drink, the food you eat, and the air you breathe.
Right now, billions of microbes are swimming in your
belly and mouth, and crawling on your skin! Don't
worry, over 95% of microbes are good for you.
Microbes include bacteria, viruses, fungi, algae, and
protozoa. These single-cell organisms are invisible to
the eye, but they can be seen with microscopes.
Using the definition
What is a Microbe?
Where do Microbes live?
GOOD or BAD Microbes?
• Bacillus thuringiensis - a common soil bacterium that is a natural
pest-killer in gardens and on crops.
Arbuscular mycorrhizas - fungus living in the soil that helps crops
take up nutrients from the soil.
Saccharomyces cerevisiae - baker's yeast that makes bread rise.
Escherichia coli - one of many kinds of microbes that live in your
digestive system to help you digest your food every day.
Streptomyces - bacteria in soil that makes an antibiotic used to
treat infections.
Pseudomonas putida - one of many microbes that clean wastes
from sewage water at water treatment plants.
Lactobacillus acidophilus - one of the bacteria that turn milk into
yogurt.
Can Cause trep throat, chickenpox and the common cold.
BAD Microbes
Bacteria
Colds
Prevention
Washing your
hands
Cause
Not Washing
your hands
Not drinking
after someone
Going to the
bathroom
Microorganisms and the Production of
Food for Humans
Lactic acid
bacteria
Saccharomyces
cerevisiae
Milk
Yeast
Wine
Bread
beer
Yogurt
Cheese
Interesting factoid about micro
organisms
• One cannot catch cold at the North Pole in
winter. Neither can one contract the flu, nor
most of the ailments transmitted viruses and
germs. The winter temperature is so low in
this part of the world that none of the
standard disease causing Micro-organisms can
survive.
URLs
• http://lovemetal6661.tripod.com/sitebuildercontent/sitebuilderpictures/h
umans.jpg Humans
• http://www.gotpetsonline.com/pictures/gallery/dogs/alphabetically/engli
sh-shepherd-dogs/ dog
• http://www.edu.pe.ca/southernkings/microbe.htm Microbe
• http://www.edu.pe.ca/southernkings/microintro.htm Microbe definition
• http://www.3dscience.com/img/Resources/Landing_Pages/Anatomy3.5/ci
rculatory.jpg Blood System
• http://majimbokenya.com/home/wp-content/uploads/2008/07/forestmau1.jpg Forest
• http://www.edu.pe.ca/southernkings/microhelpful.htm GOOD or BAD
• http://www.skwirk.com.au/p-c_s-4_u-92_t-213_c-715/foodproduction/nsw/food-production/small-world-microbiology/microorganisms-used-by-humans Foods
• http://ioframe.com/ fact