Platelets and red blood cells are components of the blood. A typical platelet and red blood cell have diameters of approximately 2.33×10^−6 m and 0.0000075 m, respectively. Which blood component has a bigger diameter, and approximately by how much?(1 point)

Question

Responses

A red blood cell has a bigger diameter than a platelet by 9.83×10−6 m.
A red blood cell has a bigger diameter than a platelet by 9.83 times 10 superscript negative 6 baseline m.

A red blood cell has a bigger diameter than a platelet by 5.17×10−6 m.
A red blood cell has a bigger diameter than a platelet by 5.17 times 10 superscript negative 6 baseline m.

A platelet has a bigger diameter than a red blood cell by 5.17×10−6 m.
A platelet has a bigger diameter than a red blood cell by 5.17 times 10 superscript negative 6 baseline m.

A platelet has a bigger diameter than a red blood cell by 9.83×10^−6 m.

Answer 1

To determine which blood component has a bigger diameter, we need to compare the diameters of the platelet and the red blood cell.

The diameter of a typical platelet is: \[ 2.33 \times 10^{-6} , \text{m} \]

The diameter of a typical red blood cell is: \[ 0.0000075 , \text{m} = 7.5 \times 10^{-6} , \text{m} \]

Now, let's compare the two diameters:

• Diameter of red blood cell: \( 7.5 \times 10^{-6} , \text{m} \)
• Diameter of platelet: \( 2.33 \times 10^{-6} , \text{m} \)

To find out by how much larger the red blood cell is compared to the platelet, we can subtract the diameter of the platelet from the diameter of the red blood cell: \[ 7.5 \times 10^{-6} , \text{m} - 2.33 \times 10^{-6} , \text{m} = 5.17 \times 10^{-6} , \text{m} \]

Thus, a red blood cell has a bigger diameter than a platelet by: \[ 5.17 \times 10^{-6} , \text{m} \]

So the correct response is: A red blood cell has a bigger diameter than a platelet by 5.17×10^−6 m.