Cambridge O Level Biology · Syllabus 5090 · Development of Organisms and Continuity of Life
Testosterone
What is Testosterone?
A hormone produced by the testes. Testosterone controls the development of male secondary sexual characteristics at puberty and is needed for the production of sperm.
This definition is part of the Development of Organisms and Continuity of Life chapter in Cambridge O Level Biology.
Last reviewed Syllabus 2026-2028

