CAIE IGCSE Biology 16.5.4 Hormonal Control of the Menstrual Cycle
Practise explaining and identifying FSH, LH, oestrogen and progesterone roles from cycle graphs and pregnancy contexts.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- link FSH to follicle maturation and stimulation of oestrogen secretion
- link the LH surge near day 14 to ovulation and release of the egg
- link oestrogen to lining repair and progesterone to lining maintenance, including pregnancy
16.5.4—Role of hormones in controlling question 1
Question (a)
(a)
Fig. 1.1 shows the changes in the concentration of two hormones involved in the menstrual cycle.
Fig. 1.1
[ 4 ]
Question (i)
(i)
State the names of the hormones Y and Z in Fig. 1.1.
Y
Z
[ 2 ]
Question (ii)
(ii)
On Fig. 1.1, sketch a line to show the levels of progesterone through the 28-day menstrual cycle.
[ 2 ]
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