BIO 2260 Chapter 1.1-1.3 Practice Questions with Correct Answers
What are the three benefits of microorganisms? 1. Nitrogen fixation 2. Oxygen production 3. Degradation of materials What does the Kliger's Iron Agar test determine? The production of acid from carbohydrates in organisms What are normal microbiota? Microbes that are present on a normal and healthy human's body What are pathogens? Microorganisms that cause disease New diseases are emerging and past diseases are re-emerging. What are seven factors as to why this is happening? 1. Lifestyles are changing. This increases opportunities for diseases to spread 2. Infectious agents previously unable to infect humans are evolving 3. Pathogens are becoming antimicrobial resistant 4. Travel and immigration are increasing 5. Populations are changing, so there are more immuno-compromised individuals 6. Unvaccinated individuals 7. Chronic diseases What are the three domains of life? Bacteria, Archaea, Eukarya Are archaea prokaryotes or eukaryotes? Prokaryotes Is every microbe a prokaryote? No, some microbes are eukaryotes How do you construct a scientific name? Genus species (both italicized) What is a strain? A genetic variant within a species Describe bacteria in terms of...
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