The dialysis fluid used to treat a patient with kidney failure contains no urea, but it does contain glucose at the same concentration as normal blood plasma. Why does the dialysis fluid contain glucose?
So that glucose diffuses from the dialysis fluid into the patient's blood
So that glucose diffuses from the patient's blood into the dialysis fluid
So that glucose is actively transported from the patient's blood into the fluid
So that there is no net movement of glucose out of the patient's blood
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.