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
Comparing cellular respiration with photosynthesis
Comparing cellular respiration with photosynthesis
| Comparison | Photosynthesis | Cellular respiration |
|---|---|---|
| Substances used | Carbon dioxide, water and light | Glucose and oxygen |
| Substances produced | Glucose and oxygen | Carbon dioxide, water and energy |
| Energy | Stores light energy in glucose | Releases the energy stored in glucose |
| Need for light | Needs light directly | Does not need light |
| Where it happens | Chloroplasts | Mitochondria |
- Cellular respiration is the reverse of photosynthesis in its equation
- but the two processes are not the same in their details.
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