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CAIE IGCSE Biology 16.5.3 Sites of Production of Oestrogen Questions

Practise distinguishing where oestrogen and progesterone are produced during the menstrual cycle and pregnancy.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • Identify the ovaries as production sites for oestrogen and progesterone during the menstrual cycle.
  • Identify the placenta as a production site for oestrogen and progesterone during pregnancy.

CAIE IGCSE Biology 16.5.3 Sites of Production of Oestrogen Questions question 1

[Maximum number: 1]

Fig. 1.1 shows the changes in the concentration of two hormones involved in the menstrual cycle.

Fig. 1.1

Fig. 1.1

State the main site of progesterone production during pregnancy.

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