ATP is the primary energy currency.
Photosynthesis:
Overall equation:
6CO₂ + 6H₂O + light → C₆H₁₂O₆ + 6O₂
Photosynthesis occurs in chloroplasts:
Light reactions → thylakoid
Calvin Cycle → stroma
Cellular respiration:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP
Cellular respiration stages:
Glycolysis
Krebs Cycle
Electron Transport Chain
Fermentation occurs without oxygen.
Energy flow:
Sun → Glucose → ATP