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Leaf Man > Nitrogen cycle > Flashcards

Nitrogen cycle Flashcards

1
Q

Hydrosphere

A

There is no hydrosphere in the nitrogen cycle

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2
Q

Atmosphere - Geosphere

A

Nitrogen fixation - lightning/bacteria

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3
Q

Geosphere - Biosphere

A

Assimilation (nitrates - that’s what we take - they circulate around the body to keep us healthy)

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4
Q

Biosphere - Geosphere

A

Ammonification - Ammonification refers to any chemical reaction in which NH2 groups are converted into ammonia or its ionic form, ammonium (NH4+), as an end product. Bacteria and related microorganisms derive metabolically useful energy from the oxidation of organic nitrogen to ammonium.

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5
Q

Geosphere - atmosphere

A

Denitrification

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6
Q

Biosphere - Biosphere

A

Feeding

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7
Q

Geosphere - Geosphere

A

Nitrification

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8
Q

Human impacts?

A

Fertilizer, deforestation, sewage and burning fossil fuels

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9
Q

Importance?

A

Nutrient (proteins + DNA)

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