(a)[4]
Label Fig. 1.1 with: - one labelling line and the letter A to show a region that contains urine - one labelling line and the letter B to show a region that contains podocytes - one labelling line and the letter C to show a part of the nephron that lies within the kidney medulla - one labelling line and the letter D to show the afferent arteriole.
(b)[4]
The cells of the proximal convoluted tubule are specialised for selective reabsorption. Describe and explain how these cells are adapted to carry out selective reabsorption.