A person uses a hormone-releasing intrauterine system to reduce the chance of pregnancy. The person also uses a condom to reduce the transmission of sexually transmitted infections.
Which statement describes how the condom reduces infection transmission?
It forms a physical barrier between partners, reducing the transfer of pathogens.
It keeps the uterus lining thin so pathogens are less likely to attach.
It thickens mucus at the cervix so pathogens are trapped before entering the uterus.
It releases hormones that destroy pathogens before they pass between partners.
90 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.