National 5 Prelim Revision

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Across
  1. 6. chemicals made from amino acids
  2. 9. site of photosynthesis
  3. 10. biological catalyst
  4. 11. role of an organism
  5. 13. egg and sperm are examples of these
  6. 15. living factors
  7. 16. hormone released when glucose levels are low
  8. 19. codes for a protein
  9. 20. detect stimulis
  10. 21. causes mutations
Down
  1. 1. hormone released when glucose levels are high
  2. 2. formation of a new species
  3. 3. used to protect crops from pests
  4. 4. gap between neurons
  5. 5. competition between different species
  6. 7. the movement of water
  7. 8. respiration without oxygen
  8. 12. where chromosomes line up during mitosis
  9. 14. energy molecule
  10. 17. target of insulin & glucagon
  11. 18. stem cells are described as this