CAIE IGCSE Biology 16.5.1 Testosterone & Oestrogen at Puberty
Practise linking testosterone and oestrogen to the development of secondary sexual characteristics during puberty.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- link testosterone to male secondary sexual characteristics such as a deeper voice
- link oestrogen to female secondary sexual characteristics such as breast and hip development
- interpret hormone or exercise data without confusing puberty roles with anabolic-steroid misuse
16.5.1—Roles of testosterone and oestrogen question 1
[Maximum number: 3]
Chlamydia can damage the reproductive system.
Describe the role of oestrogen at puberty.
any three from:
secondary sexual characteristics ;
start of, the menstrual cycle / AW ;
hips widen ;
growth of breasts ;
growth of, pubic / body, hair ;
AVP ;
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