Biology - Organisation Revision

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Across
  1. 2. has valves to prevent backflow
  2. 4. the pH or temperature that is best for an enzyme
  3. 6. where blood enters the heart
  4. 7. can be replaced if faulty using biological or mechanical versions
  5. 10. breaks down proteins to amino acids
  6. 12. a group of cells with a similar structure and function
  7. 13. used to reduce blood cholesterol levels which slow down the rate of fatty material deposit
  8. 18. the cells that control heart rate
  9. 19. carries high pressure, oxygenated blood
  10. 20. a risk factor for Type 2 diabetes
  11. 21. a disease that can be passed on
  12. 23. made in the liver and stored in the gall bladder
  13. 24. a tissue consisting of plasma, in which the red blood cells, white blood cells and platelets are suspended
  14. 25. a carbohydrase which breaks down starch
  15. 26. the building blocks of living organisms
Down
  1. 1. where gas exchange take place
  2. 3. the site where specific reactions are catalysed
  3. 5. fragments of cells which initiate the clotting process at wound sites
  4. 8. used to keep the coronary arteries open.
  5. 9. groups of tissues working together
  6. 11. transports proteins and other chemical substances around the body
  7. 13. a risk factor for lung cancer
  8. 14. a biological catalyst that speed up chemical reactions in living organisms
  9. 15. the ventricle with the thickest muscle wall
  10. 16. the wind pipe
  11. 17. the state of physical and mental wellbeing
  12. 22. break downs carbohydrates to simple sugars