(Nitrogen fixation)Nitrogen is taken up through the roots of leguminous plants (contain nitrogen fixing bacteria) in the form of nitrates through active transport and then they are used to create proteins (amino acid)
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Describe another way to which nitrogen enters plants?
Fertilisers are another way to which the plant is directly provided with nitrates to take up through the roots.
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How does the nitrogen enter animals?
The protein (nitrogen) is passes along the food chain as animals eat plants and other animals.
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How does the Nitrogen enter the soil from the animal?
Nitrates are released back into the soil through excretion (animal waste) and then they are decomposed by microorganisms.
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How does nitrogen enter the cycle?
Nitrogen molecules in the air are split by lightning and then the atoms combine with oxygen in the air to form nitrates. These are then washed into the soil through rain.
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How does nitrogen leave the nitrogen cycle?
Denitrifying bacteria converts nitrates in the soil into nitrogen gas.
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Other cards in this set
Card 2
Front
Fertilisers are another way to which the plant is directly provided with nitrates to take up through the roots.
Back
Describe another way to which nitrogen enters plants?
Card 3
Front
The protein (nitrogen) is passes along the food chain as animals eat plants and other animals.
Back
Card 4
Front
Nitrates are released back into the soil through excretion (animal waste) and then they are decomposed by microorganisms.
Back
Card 5
Front
Nitrogen molecules in the air are split by lightning and then the atoms combine with oxygen in the air to form nitrates. These are then washed into the soil through rain.
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