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Week 1, 9-12 pg 1-4.

Microbiology

week 1, 9-12Answer
Q: Microbiology was born as a science in what year and by who? A. Anthony van Leeuwenhoek in 1674
q. Van Leeuwenhoek made the first microscope to "____________"? a. "animalcules"
q. All organisms which are dependant upon host are? a. Parasites
q.Detractors to the Spontaneous Generation theory included what three people? a. 1Francesco Redi, 2.Louis Pasteur 3.John Tyndall
q. Who disproved Spon. Gen. by using flies? a. italian biologist and physician Francesco Redi
q. Who is considered the father of modern microbiology? a. Louis Pasteur
q. Who demonstrated that the air is filled with microorganisms by using a swan neck flask and a cotton plug and infusions. a. Louis Pasteur
q. Who explained discrepancies to pasteurs results due to heat resistant life forms? a. John Tyndall
q. Who discovered endospores? a. German botanist Ferdinand Cohn
q.Robert Koch was able to establish _____________ role in disease transmission. a. endospore
q. In what year did Antony van Leeuwenhoek observe bacteria and protozoa using his first microscope? a. 1676
q. In what year did Edward Jenner introduce a vaccination procedure for smallpox? a. 1796
q. What did Mathias Schleden and Theodor Schwann propose in 1838-1839? a. that all organisms are composed of cells, the basic unit of life.
q. Ignaz Semmelwels demonstrated that puerperal or childbed fever is a contagious disease transmitted by physicians to their patients during childbirth in what years? a. 1847-1850.
q. In 1853-1854 what did John Snow demonstrate ? a. that the cholera epidemic was due to a water supply contaminated with human sewage.
q. Who demonstrated that yeast can degrade sugar to ethanol and carbon dioxide ? a. Pasteur 1822-1895
q. 1827-1912 ? a. Joseph Lister and antiseptics.
q. In 1843-1910 who demonstrated that anthrax is caused by a bacterium, introduced pure culture techniques for handeling bacteria, ieentifies the causative agent of tuberculosis, and stated his own postulates? a. Koch
q. Who discovers phagocytes and their role in engulfing bacteria in 1845-1916? a. Elie Metchnikoff
q. What did Paul Ehrlich start in 1908? a. Chemotherapy to treat diseases.
q.1928 who discovered genetic transformation in bacteria? a. Fredrick Griffith
Q. what did Alexander Fleming do? a. Fleming discovers and describes the properties of the first antibiotic, penicillin.
q. 1944 what did Avery, MacLeod, and McCarty do? a. demonstrated that Griffith's transforming principle is DNA.
q. 1944 what did Joshua Lederberg and Edward Tatum demontrate about DNA ? a. that it can be transferred from one bacterium to another CONJUGATION.
1953. q. What contribution to DNA did Watson, Crick, Franklin and Wilkins make? a. determined the structure of DNA.
Created by: tim sopp on 2007-09-12



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