BIOS 242 WEEKLY REVIEWS ESSENTIAL STUDY
QUESTIONS AND ANSWERS
◉ Louis Pasteur.
Answer: Disproved spontaneous generation using the Swan-Neck
Flask Experiment; developed Germ Theory; invented pasteurization;
developed rabies vaccine.
◉ Antonie van Leeuwenhoek.
Answer: Improved microscopes and was the first to observe
microorganisms; made observations of microbes in rainwater and
other samples.
◉ Ignaz Semmelweis.
Answer: Showed that handwashing prevents disease transmission;
reduced infections in maternity wards.
◉ Joseph Lister.
Answer: Developed aseptic technique and promoted sterile
procedures during surgery.
◉ Robert Koch.
, Answer: Developed Koch's Postulates and proved specific
microorganisms cause specific diseases.
◉ Carl Linnaeus.
Answer: Created taxonomy and developed binomial nomenclature.
◉ Koch's Postulates.
Answer: Four steps used to prove that a microorganism causes a
specific disease.
◉ Binomial Nomenclature.
Answer: System used to name organisms using Genus species.
◉ Rules of Scientific Names.
Answer: Genus is capitalized, species is lowercase, and both are
italicized or underlined when handwritten.
◉ Example of Scientific Name.
Answer: Staphylococcus aureus.
◉ Bright-field Microscope.
Answer: Most common microscope; used to view stained specimens.
QUESTIONS AND ANSWERS
◉ Louis Pasteur.
Answer: Disproved spontaneous generation using the Swan-Neck
Flask Experiment; developed Germ Theory; invented pasteurization;
developed rabies vaccine.
◉ Antonie van Leeuwenhoek.
Answer: Improved microscopes and was the first to observe
microorganisms; made observations of microbes in rainwater and
other samples.
◉ Ignaz Semmelweis.
Answer: Showed that handwashing prevents disease transmission;
reduced infections in maternity wards.
◉ Joseph Lister.
Answer: Developed aseptic technique and promoted sterile
procedures during surgery.
◉ Robert Koch.
, Answer: Developed Koch's Postulates and proved specific
microorganisms cause specific diseases.
◉ Carl Linnaeus.
Answer: Created taxonomy and developed binomial nomenclature.
◉ Koch's Postulates.
Answer: Four steps used to prove that a microorganism causes a
specific disease.
◉ Binomial Nomenclature.
Answer: System used to name organisms using Genus species.
◉ Rules of Scientific Names.
Answer: Genus is capitalized, species is lowercase, and both are
italicized or underlined when handwritten.
◉ Example of Scientific Name.
Answer: Staphylococcus aureus.
◉ Bright-field Microscope.
Answer: Most common microscope; used to view stained specimens.
