From The School of Biomedical Sciences Wiki
The structure of steroids have multiple rings. Some examples of steroids are "cholesterol" and "testosterone". Cholesterol can be found in many different cell membranes. Testosterone is a male steroid hormone.
- ↑ Alberts, Johnson, Lewis, Raff, Roberts and Walter. (2008) 'Molecular Biology of the Cell' 5th Edition. New York: Garlands Science.