Question

The unicellular spores of the fern Ceratopteris richardii are about 100 μm in diameter. Calculate the surface-area-to-volume ratio of a cube whose sides are 100 μm in length to approximate the surface-area-to-volume ratio of the fern spore cell. Show your work.

Answer 1

Take 6(100x10^-6)^2 which is the surface area of it.

The volume is (100 x 10^-6)^3 this is the volume of it.

This is the surface to volume ratio, so 6(100x10^-6)^2 divided by (100 x 10^-6)^3.

Moreover the volume is 6 x 10^4