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BIO230: Exam 1 2025 Questions and Answers Anton van Leeuwenhoek - ....ANSWER☑️☑️...-scientist: first observation of living microorganisms ("animalcules") using a light microscope Francesco Redi - ....ANSWER☑️☑️...-scientist: meat/maggots experiment to disprove spontaneous generation theory biogenesis - ....ANSWER☑️☑️...-the theory that living things must come from living things spontaneous generation - ....ANSWER☑️☑️...-the theory that living things can come from non-living matter Louis Pasteur - ....ANSWER☑️☑️...-scientist: S-necked flask experiment to disprove spontaneous generation theory; developed process of pasteurization to solve spoilage problem; found that non-disease-causing (avirulent) organisms can be used for vaccination Ignatz Semmelweis - ....ANSWER☑️☑️...-scientist: studied clinics with physician/nursing students for infection rates, and recommended hand-washing before patient treatment Joseph Lister - ....ANSWER☑️☑️...-scientist: believed microorganisms were being transmitted from cadavers, and used phenol to treat wounds/surgical instruments; led to development of aseptic technique FOR STUDY PURPOSES ONLY ©️ 2025 ALL RIGHTS RESERVED 1