Question

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

Answer 1

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

The diameter of a platelet is approximately \(2.33 \times 10^{-6}\) meters, and the diameter of a red blood cell is approximately \(0.0000075\) m, which can be expressed in scientific notation as \(7.5 \times 10^{-6}\) meters.

Now, let's compare the two:

• Platelet diameter: \(2.33 \times 10^{-6}\) m
• Red blood cell diameter: \(7.5 \times 10^{-6}\) m

Now we determine which one is bigger and by how much:

Difference in diameter: \[ (7.5 \times 10^{-6}) - (2.33 \times 10^{-6}) = 5.17 \times 10^{-6} \text{ m} \]

So, a red blood cell has a bigger diameter than a platelet by approximately \(5.17 \times 10^{-6}\) m.

The correct response is: A red blood cell has a bigger diameter than a platelet by \(5.17 \times 10^{-6}\) m.