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GCSE Biology · key term
The chemical process in cells that transfers energy from glucose for living processes.
Used by AQA, Edexcel and OCR
Specification 4.1.1.2, 4.4.1.3, 4.7.4.3 · Paper 1, Paper 2
A chemical process that transfers energy for use by cells.
Revise: Animal and Plant Cell StructureFor example, genetic instructions in the nucleus can be used to make proteins at ribosomes, while respiration in mitochondria transfers the energy needed for cell activities.
The process in living cells that transfers energy from glucose for use in living processes.
When asked to explain a structure's function, name the process or substance involved: for example, mitochondria are the site of aerobic respiration, which transfers energy for cell activities.
For a question asking for the uses of glucose, give distinct uses rather than several examples of respiration or storage.
In a carbon-cycle explanation, follow the carbon: carbon dioxide enters plants by photosynthesis, passes to animals by feeding, and returns to the atmosphere through respiration and combustion.
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A chemical process in cells that transfers energy from glucose for life processes.
Specification 8.1, 9.13 · Paper 2
Chemical reactions in cells that release energy from nutrient molecules such as glucose.
Revise: Transport NeedsOxygen is needed for aerobic respiration, whereas carbon dioxide is produced by respiration and must be removed. In a photosynthesising plant, carbon dioxide is also a useful raw material.
The process in living cells that releases energy from glucose; aerobic respiration also produces carbon dioxide.
Specification B4.1c · Paper 2 (Foundation), Paper 4 (Higher)
The cellular process that releases energy from organic substances and transfers carbon into carbon dioxide.
Revise: Carbon and water cyclesRespiration: producers, consumers and decomposers respire. Carbon from organic substances is released to the surroundings as carbon dioxide.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Pyramids of BiomassIn aerobic respiration, carbon from glucose becomes carbon dioxide and hydrogen contributes to water; these products can leave the organism. Energy is ultimately transferred to the surroundings, while the respired organic material is no longer available as consumer tissue for the next trophic level.