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9 Cards in this Set
- Front
- Back
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How much of the air is nitrogen?
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78%
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what molecules in plants and animals are nitrates used to build?
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Proteins and DNA
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Describe the role of decomposers in the nitrogen cycle.
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Decomposers return the nitrates in plants and animals to the soil via animal waste, which contains nitrogen and is then converted to ammonia, and when plants and animals die and decay, their proteins break down, releasing ammonia.
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What does nitrifying bacteria do?
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Nitrifying bacteria in the soil convert ammonia to nitrates.
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What does nitrifying bacteria do?
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Nitrifying bacteria in the soil convert ammonia to nitrates.
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What do denitrifying bacteria do?
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Denitrifying bacteria in the soil breaks down nitrates, then releases nitrogen into the air
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What does nitrifying bacteria do?
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Nitrifying bacteria in the soil convert ammonia to nitrates.
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What do denitrifying bacteria do?
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Denitrifying bacteria in the soil breaks down nitrates, then releases nitrogen into the air
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How can nitrogen get back into the soil?
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Nitrogen can get back into the soil via lightning, legumes and by making ammonia industrially.
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