Some species of algae, bacteria and shrimp can live in the Great Salt Lake in Utah. Such organisms are classified at Certain species of algae, bacteria, and shrimp can live in Utah's Great Salt Lake. These organisms are classified as: Select one: O to. halide O b. psychrotrophs O c. piezophiles or barophiles O d. halophiles
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- These are enzymes that can sustain in a high hydrostatic pressure. * (Please choose one correct answer only) A. Piezohiles B. Halophiles C. Acidophiles D. Alkaliphiles E. ThermophilesSome marine bacteria, such as Cytophaga species, live and grow well inside fish guts and in waters below freezing temperatures. These bacteria are: a) Halophilic b) Psychrophilic c) Friophilic d) Thermophilic e) MesophilicWhich ingredient(s) in NA/NaCl are used: a to solidify the medium b as source of energy c as source of carbon d as source of nitrogen
- An organism that gains energy from redox reactions involving inorganic and organic chemicals is a(n) autotroph. aerobe. lithotroph. phototroph. chemotroph.Heterotrophs that harvest energy from organic molecules are called A. photoautotrophs B. chemoautotrophs C. photohetrotrophs D. Chemoheterotrophs E. nitrogen fixers.Use of synthetic fertilizers often leads to the contamination of groundwater with nitrates. Nitrate pollution is also a suspected cause of anoxic "dead zones" in the ocean. Which of the following processes is most likely to help reduce nitrate pollution? A. adding methanogens to the soil B. adding nitrifying bacteria to the soil C. adding denitrifying bacteria to the soil D. using ammonia instead of nitrate as a fertilizer
- How can primary sewage treatment be used as a source of biofuel? a.Fermentation of BOD allows ethanol to be produced b.After primary treatment, the water is clean enough to use for hydrogen fuel c.Lipids that collect on the surface can be collected for biodiesel d.The trickling filters captures sludge that can be used for hydrogen fuelAn organism that can synthesize all its required organic componentsfrom CO2 using energy from the sun is aa. photoautotroph b. photoheterotroph c. chemoautotroph d. chemoheterotrophDenitrification is which of the following? a. Organisms like algae, cyanobacteria and plants are capable of using light energy which is trapped by chlorophyll, to convert carbon dioxide and water into oxygen and glucose b. The first step in the synthesis of virtually all nitrogenous compounds c. The decomposers - certain soil bacteria and fungi e.g. ammonifying bacteria - break down proteins in dead organisms and animal wastes, releasing ammonium ions d. Nitrates are reduced to nitrogen gas by denitrifying bacteria e. Aerobic respiration requires oxygen
- organisms that use light energy as carbon source is known as Select one: a. chemoHeterotrophs b. photoheterotrophs c. photoautotrophs d. chemoautotrophsWhich of the following is not true about photoautotrophs?(a) They require CO2 and light.(b) They synthesize organic molecules from inorganicmolecules.(c) They are a subdivision of heterotrophs.(d) They are a subdivision of autotrophs.(e) All the above are true.These enzymes require a temperature of 15 degree Celsius or lower needed for growth / optimal activity. * (Please choose one correct answer only) A. Thermophiles B. Cryophiles C. Halophiles D. Piezophiles