(a(i))[3]
Name the processes at P, Q and R, apart from diffusion, osmosis and active transport.
(a(ii))[3]
Identify the nephron regions shown by P, Q and R.
(b)[2]
Suggest an explanation for the observations recorded in Fig. 6.1 by the student.
Biology 9700 · AS & A Level · Homeostasis in mammals
Homeostasis in mammals — practice question
Inside the kidney, a range of molecules pass between the blood and the kidney nephron. Table 6.1 shows how molecules move at three parts of the nephron, P, Q and R.