Other questions in this quiz

2. What is a phospholipid bilayer?

  • the active site of an enzyme
  • a layer of proteins
  • all the molecules being arranged so that the hydrophobic tails are inside the bilayer
  • movement of oxygen across the wall of an alveolus

3. What continuously removes the mucus from lungs?

  • Stomach Acid
  • It removes itself
  • Cilia
  • Tissues

4. What are epithelial cells?

  • one or more layers of cells sitting in a basement membrane, made of protein fibres.
  • hair-like structures
  • parts of lungs
  • cells made from helium

5. How is surface area to volume ratio calculated?

  • by dividing an organism's total surface area by its volume
  • by adding the total surface area to volume
  • by calculating the volume
  • by calculating the total surface area


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