Biology Crossword

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Across
  1. 2. The passive movement of particles from an area of higher concentration to lower concentration
  2. 6. The separation of particles in a liquid on the basis of differences in their ability to pass through a membrane
  3. 8. Lung inflammation caused by viral or fungal infection
  4. 10. The sampling of amniotic fluid using a hollow needle inserted into the uterus, to screen for developmental abnormalities in a fetus
  5. 11. Enzyme that breaks down proteins
  6. 13. The process of inhaling gases, oxygen in particular
  7. 15. A disease caused by the formation of cancerous cells in the lugs
  8. 16. Used to send vital substances from the mother to the developing foetus
  9. 18. Used to prevent conception taking place
  10. 21. Structure for breathing
  11. 25. Enzyme that breaks down carbohydrates
  12. 26. Anti diuruetic hormone
  13. 27. A bitter greenish-brown alkaline fluid that aids digestion and is secreted by the liver
  14. 28. Formed in the ovary
  15. 29. The extent of a 2-dimensional surface enclosed within a boundary
  16. 32. The process of sperm fertilising the eggs
  17. 33. The release of eggs from the ovary
  18. 36. A capsule-shaped membranous structure surrounding the glomerulus of each nephron in the kidneys
  19. 38. The muscle that separates the chest cavity from the abdomen
  20. 40. The process of releasing gases, carbon dioxide in particular
  21. 41. A small structure located just below the hypothalamus
  22. 42. A respiratory condition marked by spasms in the bronchi of the lungs
  23. 43. The thin layer of tissue forming the natural outer covering of the body of a person or animal
  24. 44. The process of breathing
Down
  1. 1. Inflammation of the mucous membrane in the bronchial tubes
  2. 3. Each of a pair of organs in the abdominal cavity
  3. 4. A gas which is one of the products of exhalation
  4. 5. Feedback that reduces the output of a system
  5. 7. The exchange of gases
  6. 9. Each of the functional units in the kidney
  7. 12. A nitrogen-containing substance normally cleared from the blood by the kidney into the urine
  8. 14. Used as a method of treatment for sufferers of asthma
  9. 17. A steroid hormone released by the corpus luteum that stimulates the uterus to prepare for pregnancy
  10. 19. A short, microscopic, hairlike vibrating structure (e.g: eyelash)
  11. 20. Makes up the pleural cavity that surrounds the lungs
  12. 21. Produce sperm in the male reproductive system
  13. 22. Enzyme used to break down proteins
  14. 23. The process of a women menstruating monthly
  15. 24. These are found within the lungs
  16. 28. A gas used within respiration
  17. 30. A porous device for removing impurities or solid particles from a liquid or gas passed through it
  18. 31. A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction
  19. 34. Also known as the womb
  20. 35. A hereditary disorder affecting the exocrine glands. It causes the production of abnormally thick mucus
  21. 37. A lung disease resulting from the inhalation of asbestos particles
  22. 39. The process that starts with fertilisation and ends with conception