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Directions for the students: There are 4 essay questions. Please be sure to comp
Directions for the students: There are 4 essay questions. Please be sure to complete all of them with thorough substantive responses. Citations are required for all responses. There is no time limit.
Provide an example of an organism within each of the four main nutritional categories of microbes and describe how each obtains its essential nutrients.
Provide evidence in support of or refuting the following statement: Microbial life can exist in the complete absence of both sunlight or organic nutrients.
Polymerase chain reaction (PCR) is a technology that requires high temperatures to reproduce DNA fragments. Explain why the discovery of thermophilic archaea and their associated DNA polymerases was critical to the success of this technique.
Summarize how the electron transport chain functions to produce ATP in a bacterial cell versus eukaryotic cell. Explain whether or not the term chemiosmosis accurately illustrates this process.
Define each of the 4 types of microbes based upon their carbon and energy source. An example microorganism will be given for each category and why it fits explained in a sentence or two. NOTE: Do not mix non-microbial organisms in with your answer.
Clearly argue for or against the given statement. It should contain at least 2 statements about sunlight and 2 statements about organic nutrients.
In students own words explains (generally 3 to 5 sentences) how the steps of PCR and DNA polymerases work. Then relate this information specifically to the high temperatures and the lifestyle of thermophilic archaea.
Summarize in a couple of sentences how an ETC works in general. Describe at least one way how it is different in bacteria and eukaryotic cells. Define chemoiosmosis. Explain why this term can be used here or not.
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