Chloroplasts

• Chloroplast structure

  • double membrane
  • stroma - enclosed fluid
  • thylakoids
  • grana - stack of thylakoids
  • lamellae - connect granum
  • starch grains
• Thylakoid structure

  • in the thylakoid membrane there are photosystems:
  • outer section - light harvesting system
  • inner section - reaction centre
• Chloroplast


  • contain DNA loops
  • contain 70S ribosomes
  • can make own proteins
• Chloroplast functions

  • photosynthesis
  • starch is stored as starch grains