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Combined Science
Key terms
Nitrogen cycle

GCSE Combined Science · key term

Nitrogen cycle

Definition

The movement of nitrogen between organisms and non-living stores such as the atmosphere and soil.

Used by OCR

How each exam board covers it

OCR GCSE Combined Science A · J250

Specification B4.1a · Biology Paper 2

Revise: Material Cycling in Ecosystems

OCR Combined Science A past papers

Related key terms

Abiotic component
Biotic component
Carbon cycle
Ecosystem
Material cycling

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Nitrogen cycle — OCR GCSE Combined Science A Definition