The diagram below represents a mitochondrion which has been magnified 10000 times - Scottish Highers Human Biology - Question 6 - 2016

To find the actual length of the mitochondrion, we can use the formula:

$ext{Actual Length} = \frac{\text{Magnified Length}}{\text{Magnification Factor}}$

From the diagram, the magnified length of the mitochondrion is 40 mm. The magnification factor is 10000.

Thus, we perform the calculation:

$ext{Actual Length} = \frac{40 \text{ mm}}{10000}$

Since we have 1 mm = 1000 micrometres, we need to convert the actual length into micrometres:

$ext{Actual Length} = \frac{40 \times 1000 \text{ micrometres}}{10000} = 4 \text{ micrometres}$