In this video, we look at calculations involving magnification. First we explore how to determine the size of organelles from a microscope image using a scale bar. We then look at how we can use an equation to determine the magnification of an image and how to determine the actual size of an organelle.
Image credits:
Pancreatic Acinar Cell
https://commons.wikimedia.org/wiki/File:Pancreatic_acinar_cells_-_TEM.jpg
Louisa Howard, Public domain, via Wikimedia Commons
Bluetongue virus cell
https://commons.wikimedia.org/wiki/File:CSIRO_ScienceImage_1899_Viral_Structure_of_the_Bluetongue_Virus.jpg
CSIRO, CC BY 3.0 https://creativecommons.org/licenses/by/3.0, via Wikimedia Commons
Macrophage in alveolus
https://commons.wikimedia.org/wiki/File:Macrophage_in_the_alveolus_Lung_-_TEM.jpg
Louisa Howard, Public domain, via Wikimedia Commons
Cell nucleus
https://commons.wikimedia.org/wiki/File:Micrograph_of_a_cell_nucleus.png
This file has been identified as being free of known restrictions under copyright law, including all related and neighbouring rights.
Golgi apparatus
https://commons.wikimedia.org/wiki/File:Human_leukocyte,_showing_golgi_-_TEM.jpg
Louisa Howard, Public domain, via Wikimedia Commons
Green ruler
https://commons.wikimedia.org/wiki/File:Righello1.jpg
Luigi Chiesa, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Light microscope
https://commons.wikimedia.org/wiki/File:Optical_microscope_nikon_alphaphot.jpg
GcG(jawp), Public domain, via Wikimedia Commons
