MMBIO 221 Final Exam Questions With Complete Solutions!!

Developed smallpox immunization using cowpox agent - Answer-Edward Jenner Sought a "magic bullet" to destroy pathogens & not host - Answer-Paul Ehrlich Discovered penicillin - Answer-Alexander Fleming Pioneered aseptic surgery, Prevented surgical infections by using mists of phenol - Answer-Joseph Lister Father of Epidemiology (Cholera in London) - Answer-John Snow Pioneered asepsis by discovering that hand washing prevented streptococcal infections in obstetric patients - Answer-Ignaz Semmelweis Pioneered the cultivation of bacteria on solid media, Petri dishes, agar, and staining originated in his lab - Answer-Robert Koch Disproved the theory of spontaneous generation of microorganisms with swan-necked flasks, Developed the first rabies vaccine - Answer-Louis Pasteur First person to see bacteria - Answer-Antonie van Leeuwenhoek Disproved the theory of spontaneous generation of flies from meat; father of the scientific method. - Answer-Francesco Redi Which of the following microorganisms is known for its variety of locomotive structures? - AnswerProtozoaFungi: - Answer-can be yeasts, are eukaryotic, can be molds The person who proposed that all cellular life belongs to one of three domains (Bacteria, Archaea, or Eukarya), based upon rRNA sequences is: - Answer-Carl Woese To which of the following substances would a typical cell membrane be least permeable? - AnswerHydrogen ion (H+) Which of the following organisms are responsible for red tides involved in shellfish poisoning? - AnswerAlgae Short, numerous, non-motile projections used for adherence, Numerous, short bristle-like projections important in biofilms - Answer-Fimbriae Made of tubulin in eukaryotes, Placement can be monotrichous, amphitrichous, or peritrichous - Answer-Flagella Responsible for motility in spirochetes - Answer-Axial filaments Have a central role in conjugation - Answer-Pili