Microbiology - -study of organisms too small to
be seen without magnification Decomposition (microbes in energy and nutrient flow)
- -breakdown of the dead matter and wastes
into simple compounds
Microorganisms include... - -bacteria, viruses,
fungi, protozoa, helminths (worms), algae
Biotechnology - -in human use of
microorganisms, this is production of foods, drugs,
Origins of microorganisms - -bacteria-like and vaccines using living organisms
organisms have existed for 3.5 billion years, there
are prokaryotes (pre-nucleus, simple cells) and
eukaryotes (true nucleus, complex cells) Genetic engineering - -in human use of
microorganisms, manipulating the genes of
organisms to make new products
Microbial structure - -two cell lines are
prokaryotes (microscopic unicellular organisms
without nuclei and membrane bound organelles) and Bioremediation - -in human use of
eukaryotes (microscopic multicellular with nucleus microorganisms, using living organisms to remedy an
and membrane bound organelles). the other is environmental problem
viruses (acellular, parasitic particles with a nucleic
acid and protein)
Lifestyles of microorganisms - -majority live in
free existence, and relatively harmless and often
Bacteria - - beneficial, some have close association with other
organisms (parasites live on or in the body of another
organisms called the host and it damages the host)
Fungi - -
Microbes & infectious disease - -pathogens are
Algae - - microbes that do harm, nearly 2000 of them cause
disease, 10 B new infections/year worldwide, 13 M
deaths from infections/year worldwide
Virus - -
Public health microbiology and epidemiology - -
Protozoa - - monitor control and spread of disease in
communities, USPHS and CDC are involved in this
field
Helminths - -
Biotechnology - -any process that harnesses
Microbes in energy and nutrient flow - -the flow the actions of living things to derive a desired product
that includes industrial microbiology, which uses
of energy though the earth ecosystems
microbes to harvest large quantities of vaccines,
vitamins, drugs, and enzymes
Photosynthesis (microbes in energy and nutrient
flow) - -light fueled conversion of carbon
Environmental microbiology - -Study of micro
dioxide to organic material
organisms and their ecological relationships in such
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