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B1 Topic 2 Edexcel

Princess Terin Core Science Higher Englisch 25 Karten

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  1. 1If a tropism is positive, what does this mean?It grows towards the stimulus
  2. 2What is geotropism?A growth response to gravity
  3. 3Name a plant hormoneAuxin or Gibberellin
  4. 4What effect does light have on auxin?It decomposes it (breaks it down)
  5. 5What is phototropism?A growth response to light
  6. 6Where is insulin produced?Pancreas
  7. 7What causes type 2 diabetes? Give two ways type 2 diabetes can be controlled.A person being resistant to insulin. Controlled diet and injecting insulin
  8. 8What causes type 1 diabetes? How can it be controlled?A lack of insulin. Controlled diet and injecting insulin.
  9. 9What hormone acts in the opposite way to insulin?Glucagon
  10. 10Where is excess glucose stored?The liver and muscles
  11. 11What is excess glucose stored as?Glycogen
  12. 12What hormone reduces blood sugar levels?Insulin
  13. 13How are hormones transported around the body?the bloodstream
  14. 14What is the name given to the quick response that protects us from harm?Reflex
  15. 15What is the Myelin Sheath made of and what is its role?Fat to insulate the axon
  16. 16Define a synapse and state the generic name for the chemical that crosses it?The gap between two neurones. Neurotransmitters
  17. 17What is the function of a dendrite?to connect neurones
  18. 18What part of the neurone transmits information to different neurones, muscles and glands?Axon
  19. 19What are the cells in your eye that detect light?Light sensitive cells in the retina
  20. 20What makes up the Central Nervous System?The brain and Spinal Chord
  21. 21What does Negative Feedback mean?When a change in one direction is detected a mechanisms reverses the change
  22. 22Explain why we look red when we are hot?Vasodilation occurs allowing more blood to flow near the skins surface, increasing heat energy loss
  23. 23What method of heat energy transfer does sweating utilise to cool us down?Evaporation
  24. 24Which part of the brain controls body temperature?Hypothalamus
  25. 25Define HomeostasisThe maintenance of a stable internal enviroment

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Beschreibung
How confident are you at Biology? ~ TEST YOUR KNOWLEDGE
Erstellt von
Princess Terin · Apr 2016
Aktualisiert
10 Jan 2017
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