CHLOROPLAST


  • Found in green algae and higher plant.
  • Chloroplast have green pigment called chlorophyll.
  • Chlorophyll is helpful in photosynthesis and plant get food by the photosynthesis that's why chloroplast is known as kitchens of the cell.
Structure
  • It is double membrane organelles Inner membrane and outer membrane.
  • Inner membrane separates stroma from inter membrane space.
  • Inter membrane space is the space between inner and outer membrane.
Stroma

  • It is the colorless fluid inside the inner membrane.
  • The grana is present inside the stroma.
  • It contains a varity of photosynthetic enzyme, starch grains, DNA and ribosome.
  • It is the site of dark reaction during photosynthesis.
Grana

  • It is the site of light reaction during photosynthesis.
  • Grana is made by thylakoids.
  • Thylakoids contain the molecules of chlorophyll.

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