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10 Cards in this Set
- Front
- Back
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What is involved in every biogeochemical cycle?
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living organisms, the atmosphere, land, and water
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What are two examples of nitrogen fixating bacteria?
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Azotobacter and Rhizobium
they live mutualistically in rood nodles and both fix nitrogen. |
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This part of the nitrogen cycle is the onversion of nitrogen from the atmosphere into ammonia, using energy from ATP
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Nitrogen Fixation
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An organism that obtains energy by oxidizing inorganic compounds and uses it to sympathize ATP
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chemoautotrophy - only found in bacteria.
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What are two non living processes that do nitrogen fixation?
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1. lighting
2. Haber Process |
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Nitrification is a process that does what?
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converts ammonia to nitrate, involving two types of soil bacteria
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What are the two types of soil bacteria that do nitrification?
(hint: one converts ammonia to nitrite, the other converts nitrite to nitrate) |
Nitrosomonas
Nitrobacter |
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Denitrification is aerobic or anaerobic respiration?
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anaerobic respiration
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Pseudomonas denitificans is a bacterium that carries out Denitrification, what do they do?
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reduces nitrate levels in soil, converts nitrate into nitrogen
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In what 4 ways can farmers encourage growth of plants by benefiting from the nitrogen cycle?
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nitrogen fertilizer (ammonium nitrate), aerating soil (encourages nitrification), crop rotation (increase nitrogen content of soil), legumes included (for nitrogen fixing Rhizobium to thrive in)
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