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Biology & Microbiology - Molecular And Microbiology Pre Quiz 8

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Bacteria stain as gram-positive or gram-negative because of differences in the cell
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Nutrient transport requires energy because the nutrients must be transported into the cell against a concentration gradient. The energy required for nutrient transport is supplied by
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Carrier-mediated transport is necessary when
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You have discovered a new microorganism, but you want to know if it is a eukaryote or a prokaryote. To investigate this question you prepare a slide with a simple stain and view it with a light microscope with a 40X objective lens and 10X ocular lens
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Free
Some archaea have unique phospholipids in their cytoplasmic membrane that
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The use of the Gram stain in microbiology is important because it differentiates
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The cytoplasmic membrane could best be described as
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Compared to Eukaryotes, Bacteria and Archaea have ________ surface-to-volume ratios, causing ________ nutrient exchange and growth rates
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The morphology of a cell influences its
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Bacteria with type IV pili
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The terms "run" and "tumble" are generally associated with
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An organism of the genus Staphylococcus is ________, while an organism of the genus Spirochaeta is ________
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Compare and contrast the functions microbes serve in the digestive systems of both humans and rumens (e.g., cattle)
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The explosive chemical trinitrotoluene (TNT) can remain in soils after use and is hazardous to humans. Propose an experiment in which TNT-degrading microorganisms could be isolated for purposes of bioremediation
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Describe two capabilities of microbes that exemplify their dynamic nature
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Explain why infectious diseases are much less lethal in developed countries than in underdeveloped countries
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How would the presence of endospores in Louis Pasteur's nutrient solutions have affected his conclusions about spontaneous generation?
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Using specific examples, explain why it is sometimes impossible to satisfy Robert Koch's postulates
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Explain why only anaerobic bacteria inhabited Earth for the first two billion years of its existence
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Provide evidence supporting the statement that an ecosystem is controlled by microbial activities
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Describe beneficial and harmful ways in which microorganisms interact with agricultural crops
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