During training, an athlete's heart rate does not adjust correctly when their level of activity changes. Tests also show that their body water content is not kept steady.
A specialist investigates the cerebrum, cerebellum, medulla and hypothalamus.
Which option correctly matches each problem to the region that is most likely not functioning normally?
heart rate: cerebrum; body water content: cerebellum
heart rate: cerebellum; body water content: cerebrum
heart rate: medulla; body water content: hypothalamus
heart rate: hypothalamus; body water content: medulla
135 exam-style questions on OCR GCSE Biology 3.1 Coordination and control – the nervous system, covering 3.1.1 Structure of the nervous system, 3.1.2 Coordinated response, 3.1.3 The reflex arc, 3.1.4 Structure of the eye, 3.1.5 Defects of the eye, 3.1.6 Structure and function of the brain, 3.1.7 Difficulties of investigating brain function, and 3.1.8 Limitations in treating nervous system damage. Each one has a worked solution and a mark scheme showing where the marks go.