A transmission electron micrograph of a mitochondrion is shown below.
The mitochondrion in the image has been magnified 25 000 25\,000\,25000 times and has a measured image length of 75 mm.
Calculate the actual length of the mitochondrion. Give your answer in micrometres (μm\mu\text{m}μm).
Use the equation:
actual length=length of imagemagnification \text{actual length} = \frac{\text{length of image}}{\text{magnification}} actual length=magnificationlength of imageGiven that 1 mm=1000 μm1\text{ mm} = 1000\ \mu\text{m}1 mm=1000 μm.