B4 Quiz

Based on the grade booster checklist in my revision guide

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1. What is diffusion?

  • The movement of molecules from an area of high to low concentration
  • The random movement of molecules
  • The movement of molecules from an area of low to high concentration
  • The movement of water across a cell membrane
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2. Does anaerobic or aerobic respiration produce more energy?

  • Aerobic
  • Anaerobic
  • They release the same amount
  • Anaerobic doesn't release any

3. What are enzymes assembled from?

  • Instructions based on previous reactions
  • Instructions based on the body's needs at the time
  • Instructions in the genes
  • Instructions from receptors

4. How is water moved into plant roots?

  • Through the chlorophyll
  • Absorption
  • Osmosis
  • Photosynthesis

5. What are enzymes?

  • Proteins that speed up the development of proteins
  • Chemicals that are used as catalysts
  • Proteins that speed up chemical reactions
  • Chemicals that speed up the development of proteins
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