Combined Science GCSE
Respiration
What Respiration means in Combined Science GCSE, as defined for AQA.
Definitions of Respiration
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Reference: AQA
A series of enzyme-controlled reactions that transfers chemical energy from glucose into a usable form in cells.
A return process by plants, animals and microorganisms which releases carbon dioxide into the atmosphere.
The sum of enzyme-controlled reactions that release energy from glucose, and a key part of metabolism.
An exothermic process that transfers energy to the surroundings, contrasted with photosynthesis.
A reaction that transfers energy from glucose and other substrates, and is part of metabolism.
A process that returns materials to the environment, for example releasing carbon dioxide.
Topics that use Respiration
- Aerobic and anaerobic respiration (AQA GCSE)
- How materials are cycled (AQA GCSE)
- Metabolism (AQA GCSE)
- Photosynthetic reaction (AQA GCSE)
Related terms
- Aerobic respiration
- Anaerobic respiration
- Glucose
- Amino acids
- Balanced symbol equation
- Carbon cycle
- Cellular respiration
- Cellulose
Using Respiration in the exam
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