Biology GCSE
nitrogen cycle
What nitrogen cycle means in Biology GCSE, as defined for OCR.
Definition of nitrogen cycle
Check what you remember
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Reference: OCR
Nitrogen gas in the atmosphere is converted into mineral nitrates absorbed by plant roots to synthesise plant proteins, which are passed to consumers and recycled by decomposers.
Topics that use nitrogen cycle
- Ecosystems (OCR GCSE)
Related terms
- abiotic and biotic components
- abiotic factors
- aerobic and anaerobic decomposition
- biotic factors
- carbon cycle
- carrying capacity
- Cellular respiration
- community distribution
Using nitrogen cycle in the exam
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