Puberty
Biology: AQA GCSE Higher, topic 5.3.19
Puberty
Features that appear during puberty are called secondary sex characteristics. Males and females respond differently when their bodies reach puberty:

Males
- The amount of the hormone testosterone rises.
- The rise in testosterone stimulates sperm production.
- Underarm, facial and pubic hair grow.
- Voice deepens.

Females
- The amount of the hormone oestrogen rises and triggers the menstrual cycle.
- Underarm and pubic hair grow.
- Breasts enlarge.
Test yourself on Puberty
Which change happens to males but not to females during puberty?
Why does sperm production not happen during female puberty?