- | P a g e
Complete set of Microbiology Exams 1-7 from Rio Salado College with accurate and verified questions covering microbial structure and function, bacterial growth, genetics, immunology, infectious diseases, and laboratory techniques.Ideal for exam preparation across the full microbiology curriculum.
List several ways in which microbes affect our lives. - ANSWER-· Maintenance of an ecological balance on earth Produce foods and chemical necessary for the survival of humans Maintain health present on your skin, in your mouth, and in your stomach
Recognize the system of scientific nomenclature that uses genus and specific epithet names. - ANSWER-Designed by Carolus Linnaeus each living organism is assigned two names. The genus is the first name and is always capitalized. The species name follows and is not capitalized.
Differentiate among the major characteristics of each group of microorganisms. - ANSWER-Most common shapes of bacteria: 1 / 4
- | P a g e
Bacillius (rodlike); Coccus (spherical or ovoid); spiral (corkscrew or curved).
Archaea: - ANSWER-consist of prokaryotic cells and don't have
cell walls. They live in extreme environments
Fungi: - ANSWER-eukaryotic organisms have distinct nucleus.
Can be uni/multicellular
Protozoa: - ANSWER-eukaryotic; unicellular. Most are
parasites, names means "first animals"
Algae: - ANSWER-uni/multicellular that obtain nourishment
through photosynthesis.
Viruses: - ANSWER-non cellular that are parasites of cells.
Structurally simple, difficult to kill. Smaller than bacteria.
All organisms are classified into three basic domains. What are the domains? - ANSWER-Bacteria, Archaea, and Eukarya.
- / 4
- | P a g e
Explain the importance of observations made by Hooke and van Leeuwenhoek. - ANSWER-Hooke discovery marked that beginning of cell theory - that all living things are composed of cells VAm Leeu - observation of live microorganisms using his simple microscope
Compare the theories of spontaneous generation and biogenesis.
- ANSWER-Spontaneous generation is that life could
spontaneously generate Biogenesis- the theory that living cells can arise only from preexisting living cells.
Identify the contributions to microbiology made by Needham, Spallanzani, Virchow, and Pasteur. - ANSWER-Needham claimed that microorganisms could arise spontaneously from heated nutrient broth Spallanzani suggested needham results were due to microorganisms in the air that were entering his broth.Virchow biogenesis Pateur experiments that formed the basis for aseptic technique.
- / 4
- | P a g e
Identify the importance of Koch's postulates. - ANSWER- Proved that microorganisms caused disease
Explain how Pasteur's work influenced Lister and Koch. - ANSWER-Because he participated in the development of germ theory (idea that microorganisms might cause disease)Coined the term vaccine and that the protection from disease or recovery is called immunity, and discovered that avirulent bacteria can be used to cure fowl cholera
Identify the importance of Jenner's work. - ANSWER-He demonstrated that inoculation with cowpox material provided humans with immunity from small pox
Identify the contributions to microbiology made by Ehrlich and Fleming. - ANSWER-Ehrlich introduced an arsenic containing chemical called salvarsan to tx syphilis Flemming observed that mold (penicillium) inhibited the growth of a bacterial culture.
Define bacteriology, mycology, parasitology, immunology, and
virology. - ANSWER-Bacteriology: the study of bacteria
Mycology: the study of fungi
- / 4