PLEASE SUBMIT IN THE DROP BOX IN MICROSOFT WORD.
CHAPTER-1 The Microbial World and You
List several ways in which microbes affect our lives.
Help maintain the balance of living organisms and chemicals in our environment.
Marine and fresh water microorganisms form the bases of the food chain in oceans, lakes, and ricers.
Soil microbes help break down wastes and incorporate nitrogen gas from the air into organic compounds, thereby recycling chemical elements between the soil, water, life, and air.
Some microbes play a role in photosynthesis.
Microbes in our intestines for digestion and the synthesis of vitamins
The food industry uses microbes in producing for instance yogurt and cheese.
Recognize the system of scientific nomenclature that uses two names : a genus and a specific epithet.
The genus is the first name and is always capitalized
The specific epithet is the species name and is not capitalized
Ex.) Salmonella enteric: Genus= Honors public health microbiologists Daniel Salmon Source of Specific Epithet = Found in the intestines (entero-)
Which groups of microbes are prokaryotes and which are eukaryotes?
Prokaryotes
Bacteria
Archaea
Eukaryotes
Fungi
Protozoa
Algae
Multicellular animal parasites
Viruses
Acellular
What are the three domains?
Explain the importance made by Hooke and Van Leeuwenhoek.
Robert Hooke
1665 able to see individual cells
Cell theory- that all living things are composed of cells
Anton Van Leeuwenhoek
First to observe live microorganisms
“animalcules” –bacteria and protozoa from scrapings of his teeth, feces and rain water.
Compare spontaneous generations and biogenesis.
Spontaneous Generations
Forms of life could arise spontaneously from non-living matter (snakes could be born of moist soil.)
Francesco Redi proved theory wrong with decaying meat and flies/larvae (1668)
Biogenesis
Claim that living cells can arise only from preexisting