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14 Cards in this Set
- Front
- Back
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In order to be synthesized, which of the following organic compounds need a source of usable nitrogen? (more than one answer may be selected)
A) carbohydrate B) lipid C) protein D) nucleic acids |
C) protein
D) nucleic acids |
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Which of the following organisms is using sulfur as a source of energy?
A) Thiobacillus: H2S > S0 B) Desulfovibrio: SO4 2- > H2S C) Proteus: Amino acids > H2S D) Redwood tree: SO42- > Amino acids E) None of the above |
A) Thiobacillus: H2S > S0
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Which of the following pairs is mismatched?
A) Rhizobium - legumes B) Bacillus thuringiensis - insect control C) Thiobacillus ferrooxidans - uranium mining D) Frankia - alders E) Lichen - an alga and a bacterium non-photosynthetic bacterium |
E) Lichen - an alga and a bacterium non-photosynthetic bacterium
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Which of the following terms describes N2 > NH3?
A) Ammonification B) Denitrification C) Nitrification D) Nitrogen fixation E) None of the above |
D) Nitrogen fixation
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Nitrosomonas and Nitrobacter are capable of
A) Ammonification. B) Denitrification. C) Nitrification. D) Nitrogen fixation. E) None of the above |
C) Nitrification.
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This process is done by Rhizobium and certain cyanobacteria:
A) Ammonification B) Denitrification C) Nitrification D) Nitrogen fixation E) None of the above |
D) Nitrogen fixation
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Which of the following do not fix atmospheric nitrogen?
A) Cyanobacteria B) Lichens C) Mycorrhizae D) Frankia E) Azotobacter |
C) Mycorrhizae
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Filtration to remove protozoa occurs in
A) Anaerobic sludge digestion. B) Primary sewage treatment. C) Secondary sewage treatment. D) Tertiary sewage treatment. E) Water treatment. |
E) Water treatment.
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Which of the following is not a habitat for an extremophile?
A) The Atlantic Ocean B) 100°C water C) Acid mine wash D) Inside rock E) Salt-evaporating pond |
A) The Atlantic Ocean
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Sedimentation of sludge occurs in
A) Anaerobic sludge digestion B) Primary sewage treatment. C) Secondary sewage treatment. D) Tertiary sewage treatment. E) Water treatment |
B) Primary sewage treatment.
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Which of the following is not a symbiotic pair of organisms?
A) Orchid and mycorrhizae B) Bean plant and Rhizobium C) Elk and rumen bacteria D) Sulfur and Thiobacillus E) Onions and arbuscules |
D) Sulfur and Thiobacillus
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Which wastewater treatment process is responsible for removal of most of the BOD in sewage?
A) Anaerobic sludge digestion B) Primary sewage treatment C) Secondary sewage treatment D) Tertiary sewage treatment E) Water treatment |
C) Secondary sewage treatment
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Bacteria can increase the Earth's temperature by
A) Generating a great deal of heat in metabolism. B) Oxidizing CH4. C) Using the greenhouse gas CO2. D) Providing nutrients for plant growth. E) Producing CH4, which is a greenhouse gas. |
E) Producing CH4, which is a greenhouse gas.
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Nitrogen fixation
A) Requires aerobic conditions. B) Requires anaerobic conditions. C) The amount of oxygen doesn't make any difference. |
B) Requires anaerobic conditions.
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