Science Crossword

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Across
  1. 1. the organelles where proteins are manufactured
  2. 5. all the chemical reactions occurring in the cell
  3. 7. part of the brain where the spinal cord enters the skull
  4. 8. a pathogen about one hundred time smaller and a bacterium
  5. 11. a chemical message
  6. 15. part of the brain that is responsible for coordination and balance
  7. 18. able to maintain a constant body temperature
  8. 20. an organic catalyst
  9. 21. a viral disease, symptoms include a rash of small itchy blisters
  10. 24. the process of maintaining a constant internal environment
  11. 26. the common name for the hormone epinephrine
  12. 27. hormone produced in the pancreas and causes the liver and muscles to extract glucose
  13. 28. the space between two neurones
  14. 29. anything that causes our body to stop working properly
  15. 30. the chemical store of glucose in the liver and muscles
Down
  1. 2. muscles of glands that put the messages into effect
  2. 3. branches from the cell body that receive messages from other neurones
  3. 4. a portion of the brain that constantly checks the internal environment of the body
  4. 6. a nerve cell
  5. 9. a substance that kills bacteria or prevents the growth of bacteria
  6. 10. organelles where cellular respiration occurs
  7. 12. chemical substance that act as messengers in the body
  8. 13. a hormone that has the opposite effect to insulin
  9. 14. able to make the antibodies to a pathogen before it can make you unwell
  10. 16. special cells that detect stimuli
  11. 17. a nerve fibre that sends nerve impulses away from cell body
  12. 19. the lower half of the brain stem
  13. 22. any factor that stimulates a receptor and brings about a response
  14. 23. a substance that speeds up the rate of a reaction without being used up in the process
  15. 25. the movement of particles of a substance from and area of high concentration to an area of low concentration