Question

Escherichia coli cells are about 2.65 μm long and 0.480 μm in diameter.

i) How many E. coli cells laid end to end would fit across a pinhead of diameter 0.5 mm? Number of cells = ? cells

ii) Calculate the volume of an E. coli cell, assuming the cell to be cylindrical in shape.

The volume of a cylinder is: Cell volume = ? m^3

iii) Calculate the surface area and surface area to volume ratio of an E. coli cell.

The surface area of a cylinder is: Surface area = ? m^2

Surface area: Volume = ? m^-1

Thank you!

Answer 1