Y11 iGCSE Biology B9 Revision Crossword

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Across
  1. 3. One of the two 'control centres' in a human
  2. 7. The condition in which bodies do not create (enough) insulin and blood glucose is unchecked
  3. 9. A system that can very quickly respond to
  4. 11. Gaps between nerves. Neurotransmitter pass
  5. 13. A gland in our body that releases ADH to control water content. The 'master' gland
  6. 16. The movement of WATER from high to low concentration through a semi-permeable membrane
  7. 17. (2 words) A specialised cell plants have which have a large surface area to increase the rate of osmosis
  8. 18. The larger the concentration _ _ _ _ _ _ _ _ the faster the rate of diffusion
  9. 19. Maintaining a constant internal environment
  10. 21. A nerve that carries signals from receptors to your CNS
  11. 25. light
  12. 26. The hormone in plants responsible for cell elongation
  13. 27. water level changes, blood sugar level changes...
  14. 28. System that helps maintain homeostasis through the release of hormones
Down
  1. 1. Light intensity, sound, temperature changes,
  2. 2. and action an effect
  3. 3. How hormones pass around the body. In the _ _ _ _ _ _ _ _ _ _ _
  4. 4. Part of your eye that changes shape to change how your eye focuses
  5. 5. rate. 'Flight or fright' response
  6. 6. Our bodies maintain this at a constant level for the sake of optimum enzyme function
  7. 8. _ _ _ _ _ _ _ _ tropism. The movement or growth of an organism away from a stimulus
  8. 10. The response of the shoot of a plant to grow
  9. 12. Hormone that can increase your breathing and
  10. 14. Doesn't require energy input. The movement of particles from high concentration to low concentration
  11. 15. this gap
  12. 20. Neurone that transmits signals from the CNS to
  13. 22. Glands and muscles are examples of these. They action a response to a stimulus
  14. 23. Gland responsible for making insulin
  15. 24. the hole in your eye than lets light through (size controlled by iris' muscles)