Microbiology Practice Exam Questions with Verified Answers

Microbiology Practice Exam Questions with Verified Answers What group of microbial agents would be identified by the work of Ivanowsky and Beijerinck? A. Fungi B. Bacteria C. Viruses D. Protists - Answer-Viruses Which one of the following statements is NOT part of Koch's postulates? A. The microorganism and disease can be identified from a mixed culture. B. The microorganism must be isolated from a dead animal and pure cultured. C. The pure cultured organism is inoculated into a healthy, susceptible animal. D. The same microorganism must be present in every case of the disease. - Answer-The microorganism and disease can be identified from a mixed culture. Match the lab with the correct set of identified diseases. A. Pasteur: diptheria and typhoid fever B. Koch: cholera and tuberculosis C. Pasteur: tetanus and tuberculosis D. Koch: anthrax and rabies - Answer-B. Koch: cholera and tuberculosis What microbiological field was established by Winogradsky and Beijerinck? A. Microbial ecology B. Virology C. Mycology D. Bacteriology - Answer-Microbial ecology T or F: Koch proposed the germ theory. - Answer-False What group of microorganisms has a variety of internal cell compartments and many of which act as decomposers? A. Bacteria B. Viruses C. Fungi D. Archaea - Answer-Fungi The term ______ was used to refer to antimicrobial substances naturally derived from some ______. - Answer-antibiotic ; bacteria and fungi T or F: Most microbes today exist as independent and free-living cells. - Answer-False T or F: Pasteur said "wine disease" was souring of wine caused by yeast cells. - Answer-False; bacterial cells