photosythesis

• Photosynthesis


  The way plants make their own food using light
• Importance of photosynthesis


  • Provides O2 for breathing and respiration
  • Food source for plants and therefore animals
  • Too much CO2 in the air contributes to global warming
• Photosynthesis


  1. Plants take in CO2 from the air through stomata

  2. Plants take in water through their roots

  3. Sunlight is captured by chlorophyll in chloroplasts

  4. Glucose and oxygen are produced, oxygen is excreted through stomata
• Photosynthesis equation: Carbon dioxide + Water → Glucose + Oxygen
• Photosynthesis and respiration are exact opposites
• Factors affecting photosynthesis


  • Carbon dioxide
  • Light