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)

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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 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 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 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.
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Answer 1

To compare the diameters of a platelet and a red blood cell, let's first convert the units to be consistent:

• Diameter of a platelet: \(2.33 \times 10^{-6}\) m
• Diameter of a red blood cell: \(0.0000075\) m, which is equivalent to \(7.5 \times 10^{-6}\) m

Now let's compare the two:

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

To find the difference in diameter:

\[ \text{Difference} = \text{Diameter of red blood cell} - \text{Diameter of platelet} = 7.5 \times 10^{-6} m - 2.33 \times 10^{-6} m \]

Calculating this:

\[ = (7.5 - 2.33) \times 10^{-6} m = 5.17 \times 10^{-6} m \]

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

Therefore, the correct response is:

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