Puberty

Biology: Edexcel IGCSE, topic 3.5.23

Puberty

Males and females respond differently when their bodies reach puberty:

Males

Males

  • The amount of the hormone testosterone rises. This stimulates sperm production.
  • Underarm, facial and pubic hair grow.
  • Voice deepens.
Females

Females

  • The amount of the hormone oestrogen rises and triggers the menstrual cycle.
  • Underarm and pubic hair grow.
  • Breasts enlarge.

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