Let’s
consider a specific example of a typical biology exam
question to see how this three-step method works.
Cell A is a roughly
spherical animal cell with a radius of 10 microns.
Cell B is also roughly spherical and has a radius of
20 microns. Which of the following statements about
these two cells is false?
- Cell A has a smaller volume
than cell B.
- Cell B has a larger surface
area than cell A.
- Cell A has a larger surface
area-to-volume ratio than does cell B.
- Cell B has a larger surface
area-to-volume ratio than does cell A.
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