Insulin images

This gallery shows some different ways of illustrating insulin and includes pictures relating to the pancreas and diabetes

Insulin is a protein of 51 amino acids. It is a protein hormone that signals how much glucose is in the blood, and it is made in the pancreas. People with type 1 diabetes make too little or no insulin in their bodies, so they must inject a synthetic version of the hormone to compensate.

Image research by Iona Twaddell and captions by Rosie Cotter, adapted from Wellcome Collection unless stated otherwise.

Further reading

About this resource

This resource was first published in ‘Proteins’ in January 2014.

Cell biology
Education levels:
16–19, Continuing professional development