B1 - Understanding Organisms Revision

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1. Which of the following is an example of positive phototropism?

  • Plant shoots grow towards light
  • Plant roots grow with the pull of gravity
  • Plant shoots grow away from light
  • Plant roots grow with the pull of gravity
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2. What is the central nervous system made up of?

  • The brain and spinal cord
  • The brain and nerves to and from it
  • The brain, spinal cord and nerves to and from them
  • The spinal cord and nerves to and from it

3. Which of the following is a depressant?

  • Asprin
  • Nicotine
  • LSD
  • Solvents

4. What is the name of the gland in the brain that detects when the blood is too hot or too cold?

  • Hypothalamus
  • Haemoglobin
  • Homeostasis
  • Hypothermia

5. What are proteins made up of?

  • Glycerol
  • Amino acids
  • Simple sugars
  • Adipose tissue
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