Biology Unit 1 Quiz

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1. Whats the difference between diffusion and facilitated diffusion?

  • Facilitated diffusion goes through a partially permeable membrane
  • Facilitated diffusion uses carrier and channel proteins
  • Facilitated diffusion goes against the diffusion gradient
  • Facilitated diffusioon uses vesicles
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2. What important cells are made during an immune response?

  • Epithelial Cells
  • Memory Cells
  • Pathogens
  • Prokaryote Cells

3. Which of these are not a characteristic of osmosis?

  • Down the water potential gradient
  • Through a partially permeable membrane
  • ATP is needed for energy
  • Movement of water molecules

4. Which of these is not a stage in causing cholera?

  • The Cl- move from the cell into the gut, lowering the water potential
  • The bacterium lays dormant in a tubercle for years
  • The bacterium releases a toxin which open the Cl- channels
  • Water moves out of the cell into the gut, causing diarrhoea

5. Which of these is not true of a TEM microscope?

  • Does not give a 3D image
  • Has to be in a vaccum W
  • Focussed by lenses
  • Thin specimen needed
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Madddie

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Sucrose is not a reducing sugar. Fructose is a reducing sugar. 

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