Biology 9700 · AS & A Level · The microscope in cell studies

The microscope in cell studies — practice question

Which units are suitable for measuring the diameters of alveoli, the diameters of white blood cells and the width of cell walls?

  • Adiameters of alveoli: mm; diameters of white blood cells: mm; width of cell walls: nm
  • Bdiameters of alveoli: mm; diameters of white blood cells: $\mu\text{m}$; width of cell walls: $\mu\text{m}$
  • Cdiameters of alveoli: $\mu\text{m}$; diameters of white blood cells: mm; width of cell walls: $\mu\text{m}$
  • Ddiameters of alveoli: $\mu\text{m}$; diameters of white blood cells: $\mu\text{m}$; width of cell walls: nm

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