In IVF treatment, a woman is injected with FSH for several days before eggs are collected from her ovaries. Which statement explains why FSH is injected?
To thicken the uterus lining, so that an embryo can implant.
To trigger ovulation, so that eggs are released into the oviduct.
To make several eggs mature, so that more embryos can be produced.
To stop the ovaries releasing eggs before they can be fertilised.
84 exam-style questions on OCR GCSE Biology 3.2 Coordination and control – the endocrine system, covering 3.2.1 Principles of hormonal coordination and control, 3.2.2 Roles of thyroxine and adrenaline, 3.2.3 Hormones in human reproduction, 3.2.4 Interactions of reproductive hormones, 3.2.5 Hormones in contraception, 3.2.6 Hormones in reproductive technologies, 3.2.7 Plant hormones in growth and coordination, 3.2.8 Effects of plant hormones, and 3.2.9 Uses of plant hormones. Each one has a worked solution and a mark scheme showing where the marks go.