you photosynthetic microbes from pond water by using natural selection to allow them to reproduce more quickly than non-photosynthetic microbes. Which environment would be the best to use for this purpose? O Nutrient broth in a refrigerator A bird's digestive tract A bottle of the pond water buried underground A glass of the pond water under a lamp
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- An unknown microbe is found to be able to photosynthesize, but is also able to fix pyruvate for carbon. What is the best description of this organism? a. photoautotroph b. photochemotroph c. photoheterotroph d. chemoheterotrophSuppose you have joined to a lab lately for your undergraduate research and your supervisor isan environmental biotechnologist and interest includes various aspects of microbial diversity.Your supervisor wants you to figure out the following questions:I. What do you want to know about a newly discovered microbe? II. How do you screen that microbe for the presence of nucleic acid? III. What would be the assessment for finding the relationship between the new and alreadyexisting one?Which room(s) in a private dwelling are potentially the mostdangerous from a microbiology perspective, and why?
- organism which take carbondioxide as a chemical source is known as Select one: a. photoautotrophs b. chemoautotrophs c. chemoheterotrophs d. photoheterotrophsYou are responsible for the bioremediation of soil contaminated by jet fuel. Your coworker suggests you fertilize the soil with nitrogen and phosphorus to promote the growth of naturally occurring hydrocarbon-degrading microbes. However, you just read about a new mixture of microbes sold in a slurry with nutrients and a surfactant. What data do you need to collect to decide which approach would be best? How will you obtain these data?Which of the following microorganisms are not derivedfrom human pollution but can be found in water supply systemsand are considered “nuisance” organisms?(a) Coliform bacteria (d) Thiobacillus(b) Rhizobium (e) Clostridium(c) Azotobacter
- Your friend's cottage is on a lake that has experienced numerous blooms of cyanobacteria (blue green algae) in recent years. Which chemical is most likely responsible for these blooms? methane phosphorus iron nitrogen carbon dioxide Previous PageNext PageWhat microbes is highest in agricultural lands? A. Aerobic nitrogen fixing bacteria B. Anaerobic nitrogen fixing bacteria C. Aerobic heterotrophic bacteria D. Anaerobic heterotrophic bacteriThe activated sludge process was developed from empirical knowledge and is now widely used for wastewater treatment. From a microbial point of view, i. Discuss how the ecology of different sectors of the process can be defined. ii. Design an experiment to understand how an efficient process differs from one with problems, such as sludge bulking.
- If we are to rely on microorganisms to biodegrade wastes in landfills,aquatic habitats, and soil, list some ways that this process could bemade more efficient.What are the major steps for industrial wine production? Wineis a result of microbial fermentation reaction, so do you thinkthat it is yet a good source of food for other microorganisms togrow, why? If yes, then how would you control the growth ofany undesired microorganisms in the product?What area is NOT a potential source of an extremophile microbe? A. Microwave oven B. Wild honey C. Glacier D. Soil