Question

Bacteria vary somewhat in size, but a diameter of 1.9 m is not unusual.A. What would be the volume (in cubic centimeters) of such a bacterium, assuming that it is spherical?

B. What would be the surface area (in square millimeters) of such a bacterium, assuming that it is spherical?

Answer 1

Volume = 3.6 x 10^-12 cm^3

Area = 1.1 x 10^-5 mm^2

Step-by-step explanation:

The diameter of the bacteria that is in the shape of spherical = 1.9 m

Now we have to find the volume of the bacteria. So, use the below formula to find the volume of bacteria.

Volume = (4πr^3) / 3

Volume = (4/3)* π*(1.9*10^-6 / 2)^3

Volume = 3.6 x 10^-18 m^3

Volume = 3.6 x 10^-12 cm^3

Now find the surface area.

The surface area = 4πr^2

Area = 4 π (1.9/2)62

Area = 1.1 x 106-11 m^2

Area = 1.1 x 10^-5 mm^2