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Nitrogen cycle — Edexcel GCSE Biology Definition | GradeGen

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Biology
Key terms
Nitrogen cycle

GCSE Biology · key term

Nitrogen cycle

Definition

The movement and chemical transformation of nitrogen between the atmosphere, soil and living organisms.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Biology · 1BI0

Specification 9.15 · Paper 2

The nitrogen cycle explains how nitrogen changes form and moves between the air, soil and living organisms, making nitrates available again after plants use them.
Revise: Nitrogen Cycle

Edexcel Biology past papers

Related key terms

Crop rotation
Denitrification
Nitrate
Nitrification
Nitrogen fixation

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