Microbiology Fundamentals: A Clinical Approach, 2nd Ed. by Cowan Chapter 1
Microbiology Fundamentals: A Clinical Approach, 2nd Ed. by Cowan Chapter 1 Microbiology Correct Answer- Specialized area of biology that deals with living things too small to be seen without magnification Organism Correct Answer- Any contiguous living system or life form, such as an animal, plant or bacterium. Pathogen Correct Answer- Microbes (bacterium, virus, or other microorganism) that can cause disease. Pathogenicity Correct Answer- The ability of an organism to cause disease (i.e., harm the host). This ability represents a genetic component of the pathogen and the overt damage done to the host is a property of the host-pathogen interactions. Virulence Correct Answer- Virulence is a harmful quality possessed by microorganisms that can cause disease. A virus spreads disease, and it is a quality possessed by viruses that are on the loose and spreading. Major groups of microorganisms in order from largest to smallest Correct AnswerBacteria Archaea Protozoa Fungi Helminths (worms) Viruses Algae Microbes are easy to study because... Correct Answer- They reproduce rapidly They can be grown in large populations in the lab Microbes are difficult to study because... Correct Answer- They can't be directly seen & have to be analyzed through indirect means Eu-Kary Correct Answer- True nucleus, the only cells containing a nucleus. Pro-Kary Correct Answer- Pre nucleus, Bacteria & archaea have no true nucleus. Prokaryotes include... Correct Answer- Bacteria Archaea Prokaryotes have been on the planet... Correct Answer- 3.5 billion years Eukaryotes have been on the planet... Correct Answer- 1.8 billion years Eukaryotes were precursors to... Correct Answer- Organisms that eventually formed multicellular animals Endosymbiosis or Symbiogenesis Correct Answer- An evolutionary theory that explains the origin of eukaryotic cells from prokaryotes. It states that several key organelles of eukaryotes originated as a symbiosis between separate single-celled organisms.
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