(a)[4]
Use the letters A, B, C and D in Fig. 1.1 to complete Table 1.1. Each letter can be used once, used more than once or not used at all. For each description, write every letter that is correct.
(b)[3]
The volume and water potential of urine produced by the kidney change with the water potential of the blood. This is a result of osmoregulation. Describe the role of aquaporins in osmoregulation.
(c)[3]
Describe the role of the brain in osmoregulation when the water potential of the blood rises above the set point.