GLOSSARY OF KEY WORDS

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Across
  1. 2. Membrane in chloroplast where light reactions occur.
  2. 6. Cell containing haemoglobin for oxygen transport.
  3. 11. Gas produced by photosynthesis and used in respiration.
  4. 13. Blood vessels with thick walls that carry oxygenated blood from the heart.
  5. 16. Vascular tissue that transports food in plants.
  6. 18. Liquid portion of blood.
  7. 20. Vascular tissue that transports water and minerals in plants.
  8. 21. Heart attack; death of heart muscle tissue.
  9. 22. Simple sugar produced by photosynthesis.
  10. 24. Cell in phloem that transports food.
  11. 26. Sudden blockage of blood flow to the heart muscle.
  12. 28. Nitrogenous waste product from protein breakdown.
  13. 29. Structure in heart and veins that prevents backflow of blood.
  14. 33. Movement of water across a semipermeable membrane.
  15. 35. Upper chamber of the heart that receives blood.
  16. 37. Lower chamber of the heart that pumps blood.
  17. 40. Loss of water from plants through leaves.
  18. 41. Part of the nephron where water reabsorption occurs.
  19. 43. Wall separating the chambers of the heart.
  20. 44. Movement of food through phloem.
  21. 46. Force exerted by blood on blood vessel walls.
  22. 48. Chamber of the heart that pumps deoxygenated blood to the lungs.
Down
  1. 1. Cell that defends the body against pathogens.
  2. 3. Iron-containing protein in red blood cells that carries oxygen.
  3. 4. Organ that filters blood and produces urine.
  4. 5. Cell fragment involved in blood clotting.
  5. 7. Green pigment in chloroplasts that absorbs light energy.
  6. 8. Five-carbon sugar in DNA.
  7. 9. The main artery carrying oxygenated blood from the left ventricle to the body.
  8. 10. Process of removing waste from blood when kidneys fail.
  9. 12. Removal of metabolic waste from the body.
  10. 14. Pore in leaves for gas exchange.
  11. 15. Cup-shaped structure at the beginning of a nephron where ultrafiltration occurs.
  12. 17. Chamber of the heart that receives deoxygenated blood.
  13. 19. Network of capillaries in the kidney where ultrafiltration occurs.
  14. 23. Infection of the inner lining of the heart.
  15. 25. Process where useful substances are returned to the blood in the kidney.
  16. 27. Blood vessel with thin walls that carries deoxygenated blood to the heart.
  17. 30. Microscopic blood vessels where exchange of materials occurs.
  18. 31. Chemical messenger at synapses.
  19. 32. Process where small molecules are filtered from blood in the kidney.
  20. 34. Process by which plants make food using light energy.
  21. 36. Chamber of the heart that pumps oxygenated blood to the body.
  22. 38. Organelle in plant cells where photosynthesis occurs.
  23. 39. Functional unit of the kidney.
  24. 42. Bulk movement of substances through a medium.
  25. 45. Triplet of bases on mRNA that codes for an amino acid.
  26. 47. Protein that speeds up biochemical reactions.