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GCSE BIOLOGY AQA Respiration. EXAM REVISION QUESTIONS WITH VERIFIED SOLUTIONS LATEST 2025 UPDATE.

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GCSE BIOLOGY AQA Respiration. EXAM REVISION QUESTIONS WITH VERIFIED SOLUTIONS LATEST 2025 UPDATE.

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GCSE BIOLOGY AQA Respiration. EXAM REVISION QUESTIONS WITH
VERIFIED SOLUTIONS LATEST 2025 UPDATE.




Carbon Dioxide - ANSWER- The gas needed in photosynthesis and given off in respiration



Oxygen - ANSWER- The gas used in respiration and given off in photosynthesis



Glucose - ANSWER- This is needed in respiration and produced in photosynthesis and is then
used as a food source by the plant


Water - ANSWER- This is taken up by the roots of a plant and used in photosynthesis and it is
given off in respiration


Respiration - ANSWER- A chemical reaction that takes place in the mitochondria of all cells
in all living things to provide them with energy


Aerobic - ANSWER- Respiration that requires oxygen, this gives out more energy than
anaerobic respiration


Anaerobic - ANSWER- Respiration that does not require oxygen, this gives out LESS energy
that aerobic respiration


Mitochondria - ANSWER- Structures in cells where respiration takes place



Word Equation - ANSWER- An equation shown only with the names of the chemical in it -
e.g. oxygen + glucose carbon dioxide + water


CO2 - ANSWER- The chemical symbol for carbon dioxide - in the equation for photosynthesis
or respiration it always has a 6 at the front

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