Photosynthesis

• 6CO₂ + 6H₂O + sunlight ---> C₆H₁₂O₆ + 6CO₂

    Carbon Dioxide + Water + Sunlight gives Glucose + Oxygen

• How is a leaf adapted for light absorption:
  • Large SA
  • epidermis is transparent, allows sunlight to pass to palisade mesophyll 
  • palisade cells close to upper leaf surface
  • palisade mesophyll contains tightly packed cells
  • palisade mesophyll densely packed w/ c'plasts
  • c'plasts in palisade cells mostly packed at upper ples
  • leaf contains p'synthetic pigments capable of light absorption
• Spongy mesophyll layer is less tightly packed + has numerous air spaces
  • form a continuous pathway from stomata on lower episdermis to the palisade cells
  • allows uninterrupted diffusion of gases + facilitates gas exchange

Chlor A, chlor B, carotene