Biology OCR jan 2009 !Calculate Actual question?

i need help plzzzzz!!

Theres a picture of a cell and underneath it has a measurement of 20um!!

the question states calculate the actual length of the mitochondria.
the image size of the mitochondri is 15000um.

how can i calculate the actual wen it doesnt state the magification??

Reply 1

atheistwithfaith

Original post by telhassan

I can't really answer your question with the information you have provided. But I can tell you for certain, the mitochondria is not 15,000um. That would make it 1.5cm long.