The table shows observations from two groups in a trial.
Table
| Group | FSH concentration | Mid-cycle LH surge |
|---|---|---|
| P | remains low | absent |
| Q | rises early in the cycle | present |
Which group is more consistent with effective combined-pill use, and why?
Q; follicle maturation and the trigger for ovulation are stimulated
P; follicle maturation and the trigger for ovulation are stimulated
Q; follicle maturation and the trigger for ovulation are suppressed
P; follicle maturation and the trigger for ovulation are suppressed
48 exam-style questions on Edexcel GCSE Biology 7.2 Reproductive hormones, covering 7.2.1 Stages of the menstrual cycle, 7.2.2 Hormonal control of the menstrual cycle, 7.2.3 Hormonal contraception, 7.2.4 Evaluating contraception methods, and 7.2.5 Hormones in Assisted Reproductive Technology. Each one has a worked solution and a mark scheme showing where the marks go.