Across
- 1. The substrate binds to an enzyme at the _____ site.
- 5. The name given to blood that has oxygen in it.
- 8. The type of blood vessel that takes blood away from the heart.
- 9. The type of blood vessels that transports blood at high pressure.
- 12. The process that involves inhaling and exhaling air from the lungs.
- 13. The type of blood cell that clots the blood.
- 14. The top chambers of the heart.
- 16. The component of blood that carries all other blood cells.
- 19. The type of blood vessel that has valves.
- 20. The name of the vein that takes blood from the body to the heart.
- 22. Fats/lipids are broken down into fatty acids and ______.
- 26. The type of blood cell involved in the immune system.
- 27. The process that uses oxygen to release energy.
- 29. The system responsible for pumping blood around the body.
- 30. The chemical used to test for fats.
- 34. The waste product of respiration that is exhaled from the lungs.
- 37. The muscle underneath the lungs that contracts and relaxes during breathing.
- 39. The process by which large insoluble molecules are broken down into small soluble molecules.
- 40. The system that absorbs nutrients and water from food.
- 43. Which intestine absorbs nutrients from digestion?
- 45. The colour of Benedicts and Biuret solutions before protein or sugars are tested.
- 48. The muscle that separates the two sides of the heart.
- 49. The name of the artery that takes blood from the heart to the body.
- 50. Bile _______ fats.
- 51. The alveoli has a good _____ supply that maintains the diffusion concentration gradient.
- 53. The molecule that enzymes bind to and break down.
- 55. The structure that prevents the backflow of blood.
- 56. The tube that connects your mouth and stomach.
- 57. The colour of iodine solution before used in a test.
- 58. The organ that produces bile.
- 60. What is the name of the biological catalysts that speed up digestion?
- 61. The acid produced in the stomach.
Down
- 2. The type of blood vessel that has a one cell thick wall.
- 3. The solution used to test for sugars.
- 4. The type of blood vessel that takes blood back to the heart.
- 5. The gas that is inhaled into the lungs for respiration.
- 6. Which intestine absorbs water from digestion?
- 7. The smallest unit of life than can perform life processes.
- 10. The bottom chambers of the heart.
- 11. A factor that affects the rate of enzyme reactions.
- 15. The organ that pumps blood around the body.
- 17. What blood cell carries oxygen?
- 18. The colour iodine solution turns if starch is present.
- 21. Proteins are broken down into _______ acids.
- 23. The enzyme that breaks down fats/lipids.
- 24. The word that describes enzymes whose active site have changed shape.
- 25. The name given to blood that has no oxygen in it.
- 28. A structure made up of lots of similar tissues e.g., the heart.
- 29. The heart is also called the ______ muscle.
- 31. Bile ________ stomach acid.
- 32. The small tubes in the lungs that connect to the alveoli.
- 33. The colour biuret solution turns if protein is present.
- 34. The colour of ethanol solution before used in a test.
- 35. The solution used to test for starch.
- 36. The enzyme that breaks down starch.
- 38. The enzyme that breaks down proteins.
- 41. Starch is broken down into _______.
- 42. This structure is the site of gas exchange.
- 44. The solution used to test for proteins.
- 46. A group of similar cells e.g., a muscle.
- 47. The type of molecule that enzymes are made from.
- 52. The tube that connects your mouth and lungs.
- 54. The name given to the veins and arteries that transport blood to and from the heart.
- 59. The chemical in red blood cells that oxygen binds to.