Lesson 4 of 4 · Grade 10 Biology
Nutrition in plants and animals
18 min
Autotrophic nutrition (plants)
Photosynthesis: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ (light, chlorophyll)
- Light stage (in the grana): light energy splits water (photolysis), releasing oxygen and producing ATP and hydrogen.
- Dark stage (in the stroma): carbon dioxide is fixed and reduced to glucose.
Factors: light intensity, carbon dioxide concentration, temperature, water.
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