Chapter 18 Microbiology Questions and Answers

Chapter 18 Microbiology Questions and Answers Why is microbiology important to the dental assistant? to understand the nature of pathogens and ways to prevent the transmission of disease in the dental office Who is referred to as the Father of microbiology? Louis Pasteur Who recognized the airborne microorganisms were responsible for postsurgical infections? Joseph Lister Who was responsible for discovering the rabies vaccine? Pasteur What are the three primary shapes of bacteria ? spherical( cocci), rod ( bacilli), and spiral(spirochetes) What is the staining process for separating bacteria? Grams stain it requires the sequential use of a crystal violet dye iodine solution alcohol and safranin dye What is the term for bacteria that require oxygen to grow? Aerobes What is the most resistant form of baceterial life? spores How are prions different from other microorganism? Prions convert normal protein molecules into dangerous ones simply by causing the normal once to change their shape Which types of hepatitis are spread by exposure to blood? Hepatitis B How is HIV spread? through sexual contact with an infected person and by needle sharing among drug users What tissues are affected by the West nile Virus? the nervous system causing inflammation in the brain and spinal cord How is the H1N1 virus spread? when a person touches something that is contaminated with the virus and then touches the eyes nose or mouth before washing hands What microorganism is used as the benchmark for the effectiveness of a surface disinfectant? Tuberculosis What disease is also known as lockjaw? Tetanus What is a sign of the first stage of syphilis? the presence of a painless ulcerating sore What is a pandemic? a global disease outbreak