Platelets are red blood cells are components of the blood. A typical platelet and red blood cell have diameters of approximately 2.33 x 10^-6 m and 0.0000075 m, respectively. Which blood component has a bigger diameter, and approximately by how much?

a A red blood cell has a bigger diameter than a platelet by 5.17 x 10^-6 m.
b A platelet has a bigger diameter than a red blood cell by 5.17 x 10^-6 m.
c A red blood cell has a bigger diameter than a platelet by 9.83 x 10^-6 m.
d A platelet has a bigger diameter than a red blood cell by 9.83 x 10^-6 m.

1 answer

b A platelet has a bigger diameter than a red blood cell by 5.17 x 10^-6 m.