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GCSE BIOLOGY – EQUATIONS EXAM REVISION QUESTIONS WITH VERIFIED SOLUTIONS LATEST 2025 UPDATE.

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GCSE BIOLOGY – EQUATIONS EXAM REVISION QUESTIONS WITH VERIFIED SOLUTIONS LATEST 2025 UPDATE.

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GCSE BIOLOGY – EQUATIONS EXAM REVISION QUESTIONS WITH
VERIFIED SOLUTIONS LATEST 2025 UPDATE.




Aerobic respiration (word) - ANSWER- glucose + oxygen --> carbon dioxide + water + energy



Aerobic respiration (symbol) - ANSWER- C₆H₁₂O₆ + 6O₂ --> 6CO₂ + 6H₂O



Anaerobic respiration (animals) - ANSWER- glucose --> lactic acid + energy



Anaerobic respiration (plants) - ANSWER- glucose --> ethanol + carbon dioxide + energy



Dependent variable - ANSWER- what you measure



Independent variable - ANSWER- what you change



Energy in food (J) - ANSWER- mass of water (g) x temp change (ºc) x 4.2



Energy per gram of food (J/g) - ANSWER- energy in food (J) / mass of food (G)



Photosynthesis (word) - ANSWER- carbon dioxide + water ---(sunglight)---> glucose +
oxygen


Photosynthesis (chemical) - ANSWER- 6CO₂ + 6H₂O ---(sunglight)---> C₆H₁₂O₆ + 6O₂

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