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30 Cards in this Set

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what is micro?
branch of biology, small microbes
microbiology
the study of small organisms requiring a microsope to see
pathogen
a microbe that causes disease - only 1% of all known microbes are pathogens
what are the 5 microbes
bacteria, algae, fungi, protozoans, and viruses
what are the functions of microbes?
1. capture light energy and store it for others (photosynthetic)
2. decompose dead organixms and other wastes
3. make nitrogen available to plants from the air
4. beneficial to other organisms
5. food industry
6. synthesis of antibiotics
7. field of genetic engineering
antibiotics
substances derived from 1 organism that kill or inhibit growth of other microorganisms
field of genetic engineering
the use of microbes to make things for us
5 kingdom classification
monera
protista
plantae
fungi
animalia
prokaryotic
no nuclear membrane
eukaryotic
nuclear membrane
monera
one celled
prokaryotic
3 shapes - round, rod, spiral
found in all environments
they can eat, they can decompose almost anything
protista
divided into 2 parts - algae and protozoans
algae
most are single celled and therefore microscopic but some are larger and multi-cellular
nonpathogen
they are of little medical importance
protozoans
do contain some pathogens
single celled and microscopic
nuclear membrane (eukaryotic)
plantae
all are photosynthetic
no pathogens
fungi
-yeasts, molds, and mushrooms
-one is unicellular (yeasts) and most part are multicellular
-absorb nutrients from the environment from only dead organisms
-some are pathogentic and others are the sources of antibiotics
viruses
-not found in the five kingdoms because they are acellular - they are not composed of cells
-they are formed with only nucleic acid and protein - all there is to a virus
-RNA and DNA
-they reproduce only in living cells
-all are pathogenic to something
-there are viruses that only effect bacteria, there are viruses that only retain the ability to be infective
bacteriology
study of bacteria
phycology
study of algae
mycology
study of fungi
protozology
study of protozoans
virology
study of virus
parasitology
study of parasitic worms
greeks
-noticed that there were person to person trasmission
-noticed that there was clothing to person transmission
romans
-practiced biological warfare before battle - battles or wars were lost back in this time because of microbes
robert hooke
-devised the first lenses
-came up with the word cell
VanLeeuwenhoek
-developed much better lenses with up to 300X magnification
-observed bacteria, protoxoa, fungi, and algae
Linneaus
developed the binomial classification
Redi
devised some experiments to refute this theory of spontaneous generation
Pasteur - pasteurization
the process of heating to 56 degrees C for 30 minutes - does not sterilize but does reduce the number of microorganisms to around 30,000 per tsp
-kills pathogens