A scientist compares coordination by hormones with coordination by nerve impulses. Which row correctly describes hormonal coordination?
Hormones travel along neurones, act rapidly and produce short-lived responses.
Hormones travel in the bloodstream, act slowly and produce longer-lasting responses.
Hormones travel in gland ducts, act rapidly and produce longer-lasting responses.
Hormones travel through synapses, act slowly and produce short-lived responses.
62 exam-style questions on AQA GCSE Biology 5.3 Hormonal coordination in humans, covering 5.3.1 Human endocrine system, 5.3.2 Control of blood glucose concentration, 5.3.3 Maintaining water and nitrogen balance in the body, 5.3.4 Hormones in human reproduction, 5.3.5 Contraception, 5.3.6 The use of hormones to treat infertility (HT only), and 5.3.7 Negative feedback (HT only). Each one has a worked solution and a mark scheme showing where the marks go.