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Combined Science
Key terms
Net gas exchange

GCSE Combined Science · key term

Net gas exchange

Definition

The overall gas exchange remaining after the effects of photosynthesis and respiration have both been taken into account.

Used by OCR

How each exam board covers it

OCR GCSE Combined Science B · J260

Specification B4 · Biology, Chemistry, Physics, Combined Science

Revise: Investigating Photosynthesis

OCR Combined Science B past papers

Related key terms

Control variable
Dependent variable
Hydrogencarbonate indicator
Independent variable
Photosynthesis

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Net gas exchange — OCR GCSE Combined Science B Definition