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.
b A platelet has a bigger diameter than a red blood cell by 5.17 x 10^-6 m.
To determine which blood component has a bigger diameter, we need to compare the diameters of a typical platelet and a red blood cell.
The diameter of a typical platelet is approximately 2.33 x 10^-6 m.
The diameter of a red blood cell is approximately 0.0000075 m.
Comparing these values, we can see that the diameter of the red blood cell is greater than the diameter of the platelet.
Therefore, the correct answer is:
a) A red blood cell has a bigger diameter than a platelet by 5.17 x 10^-6 m.
To determine which blood component has a bigger diameter, you need to compare the diameters of platelets and red blood cells.
The diameter of a platelet is given as approximately 2.33 x 10^-6 m (or 2.33 micrometers). The diameter of a red blood cell is given as 0.0000075 m (or 7.5 micrometers).
Comparing these values, we can see that a red blood cell has a bigger diameter than a platelet. However, we need to determine the difference in diameters.
To find the difference, we subtract the diameter of a platelet from the diameter of a red blood cell:
0.0000075 m - 2.33 x 10^-6 m = 0.0000075 m - 0.00000233 m = 0.00000517 m
Therefore, the difference in diameter is approximately 5.17 x 10^-6 m (or 5.17 micrometers).
Therefore, the correct answer is:
a) A red blood cell has a bigger diameter than a platelet by 5.17 x 10^-6 m.