Curriculum
Science — Second Preparatory
Unit 1: Matter and Energy
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Unit 2: Matter and Chemical Reactions
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Unit 3: Energy Flow in Photosynthesis and Respiration
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Unit 4: Geological Processes
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Text lesson
Cellular Respiration
Cellular Respiration
Lesson summary
Lesson summary
- Cellular respiration is the oxidation of food inside the cell to release energy.
- Aerobic respiration takes place in the mitochondria in the presence of oxygen: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy.
- Anaerobic respiration takes place without oxygen and releases less energy. It includes fermentation by yeast and lactic acid formation in muscles.
- Cellular respiration reverses the equation of photosynthesis, and the two processes together cycle matter and energy.
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