4300 review- matt - REVIEW: TEST 1 MICROBIAL DIVERSITY 1....

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REVIEW: TEST 1 MICROBIAL DIVERSITY 1. Why is the study of prokaryotes important to the study of biology? Give five reasons. Prokaryotes are the basic building blocks of life They give us a starting point on evolution They are easy to examine and learn basic cellular concepts They can be used to make certain food products They are important for maintaining homeostasis in our bodies 2. Where are most of the earth = s prokaryotes found? Marine subsurface 3. How does the abundance of prokaryotes compare to that of plants and/or animals? There is more of an abundance of prokaryotes in plants than in animals. Prokaryotes in animals make up little of the earths biomass, while plants take up more 4. Describe in general terms the principles of mass spectroscopy. Mass spectroscopy measures the contents of a compound whether it contains alcohols, carboxysilic acids, halides, etc. 5. What is isotope fractionation. Given the ratio of 13 C/ 12 C in a sample and the PDD standard, calculate the Δ 13 C. If the Δ 13 C is very low, the material is enriched in 13 C or 12 C? Measures the amount of isotope in a given sample by means of mass spectroscopy. 6. Describe a consensus model for the early evolution of prokaryotic life. If this model is correct, what are the implications for the evolution of eukaryotes? 3.8 Ga ago prokaryoted first appeared, they then were able to achieve a highbiomass, endosymbiosis occurred, eukaryotes started about 1-1.5 Ga BP Eukaryotes most likely needed endosymbiosis to occur. They were clearly outnumbered and needed to be in an environment where they weren’t harmed. Another possiblilty of survival of eukarotes were that they had evolved to where they could evade or overcome prokaryotes that competed for survival. 7. Describe the different types of diversity? Morphological diversity: phenotypical shape measurement
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This note was uploaded on 02/08/2011 for the course MIBO 4300 taught by Professor Whitman during the Spring '10 term at University of Georgia Athens.

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4300 review- matt - REVIEW: TEST 1 MICROBIAL DIVERSITY 1....

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