# Tasks & work activities — microbiologist Source: O*NET 30.3, occupation 19-1022.00 (Microbiologists). ## Task statements - **[Core]** Isolate and maintain cultures of bacteria or other microorganisms in prescribed or developed media, controlling moisture, aeration, temperature, and nutrition. - **[Core]** Monitor and perform tests on water, food, and the environment to detect harmful microorganisms or to obtain information about sources of pollution, contamination, or infection. - **[Core]** Develop new products and procedures for sterilization, food and pharmaceutical supply preservation, or microbial contamination detection. - **[Core]** Examine physiological, morphological, and cultural characteristics, using microscope, to identify and classify microorganisms in human, water, and food specimens. - **[Core]** Provide laboratory services for health departments, community environmental health programs, and physicians needing information for diagnosis and treatment. - **[Core]** Observe action of microorganisms upon living tissues of plants, higher animals, and other microorganisms, and on dead organic matter. - **[Core]** Investigate the relationship between organisms and disease, including the control of epidemics and the effects of antibiotics on microorganisms. - **[Core]** Supervise biological technologists and technicians and other scientists. - **[Core]** Study growth, structure, development, and general characteristics of bacteria and other microorganisms to understand their relationship to human, plant, and animal health. - **[Core]** Prepare technical reports and recommendations, based upon research outcomes. - **[Core]** Study the structure and function of human, animal, and plant tissues, cells, pathogens, and toxins. - **[Core]** Use a variety of specialized equipment, such as electron microscopes, gas and high-pressure liquid chromatographs, electrophoresis units, thermocyclers, fluorescence-activated cell sorters, and phosphorimagers. - **[Core]** Conduct chemical analyses of substances such as acids, alcohols, and enzymes. - **[Supplemental]** Research use of bacteria and microorganisms to develop vitamins, antibiotics, amino acids, grain alcohol, sugars, and polymers. ## Detailed work activities - Analyze biological samples. - Analyze chemical compounds or substances. - Classify organisms based on their characteristics or behavior. - Cultivate micro-organisms for study, testing, or medical preparations. - Develop new or advanced products or production methods. - Examine characteristics or behavior of living organisms. - Inspect condition of natural environments. - Monitor environmental impacts of production or development activities. - Operate laboratory or field equipment. - Prepare biological samples for testing or analysis. - Prepare scientific or technical reports or presentations. - Research diseases or parasites. - Research microbiological or chemical processes or structures. - Supervise scientific or technical personnel.