Chapter 1 - Scope of Microbiology

One type of microscope that provides a three-dimensional image of a specimen is the: Phase-contrast microscope Transmission electron microscope Bright-field microscope Scanning electron microscope One type of microscope capable of observing living microorganisms is the: Bright-field microscope Phase-contrast microscope Fluorescence microscope Electron microscope Which scientist is most responsible for ending the controversy about spontaneous generation? John Needham Joseph Lister Louis Pasteur Robert Koch Fossils of prokaryotes go back _ billion years. 4 to 5 3.5 to 4 2.5 to 3 2.2 to 2.7 Which of the following is not a microorganism? Bacterium Algae Insect Fungus The correct descending order of the taxonomic categories is: Species, domain, phylum, kingdom, order, division, class, genus Domain, kingdom, phylum, class, family, order, genus, species Domain, kingdom, phylum, class, order, family, genus, species Kingdom, domain, phylum, order, class, family, genus, species Complex communities of microorganisms on surfaces are called: Colonies Biofilms Biospheres Flora A relationship between organisms in which the waste product of one provides nutrients for another is called: Mutualism Competition Synergism Commensalism Which of the following sites of the human body does not have a normal flora? Intestine Skin Vagina Blood Which of the following industries use(s) microorganisms? Chemical Wine Cheese All of the above All bacteria are prokaryotic cells based on presence or absence of cellular structures. Cells that contain a nucleus are eukaryotic cells. The taxonomic resource for information on bacteria is the bergey's manual . The proteins implicated in spongiform encephalopathy are prions . The cleanup of different industrial waste is referred to as bioremediation .