B1 - Understanding Organisms

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1. Reflex Arc

  • stimulus -> receptor -> sensory neurone -> CNS -> motor neurone -> effector -> response
  • CNS -> receptor -> sensory neurone -> stimulus-> motor neurone -> effector -> response
  • stimulus -> receptor -> sensory neurone -> motor neurone -> effector -> response
  • stimulus -> receptor -> motor neurone -> effector -> response
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2. Fats are stored...

  • under the skin and around organs as adipose tissue.
  • under the skin and around organs as glycogen
  • under the skin and around organs as glucose
  • under the skin and around organs as muscle

3. Maleria is caused by...

  • A vector called Plasmodium
  • A parasite protozoan called Plasmodium
  • A parasite, the mosquito
  • Stagnant water

4. Fat is composed of...

  • glucose units
  • glucose & glycogen
  • glycerol & fatty acids
  • amino acids

5. Spinal Reflex

  • receptor -> sensory neurone -> relay neurone ->motor neurone -> effector
  • receptor -> sensory neurone -> relay neurone
  • CNS -> receptor -> sensory neurone -> stimulus-> motor neurone -> effector -> response
  • sensory neurone -> relay neurone ->motor neurone -> effector
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