puzzle up

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Across
  1. 3. The metal present in haemoglobin
  2. 5. The longest bone in the body
  3. 7. The largest cell organelle present in the plant cell
  4. 8. Photosynthesis mainly occurs in which part of the plant
  5. 10. The power house of the cell
  6. 11. Blood vessels that carries blood away from the heart
Down
  1. 1. Largest gland in human body
  2. 2. Number of chambers in human heart
  3. 4. The biggest part of brain
  4. 6. The terminal end of chromosome
  5. 9. Vermicomposting is done by the organisms
  6. 10. Nitrogen,phosphorous and potassium are examples of _______ Nutrients