Question

Give advantage of having highly coiled structure in human kidney. Mention any two substances which are selectively reabsorbed as filtrate flows along the tubular part of nephron.

Answer 1

The coiled structure increases the surface area, so as to provide more area for activities to take place. This increases the rate of purification of blood, and allows the efficient formation of urine.

Two substances which are selectively reabsorbed from the tubules of nephrons are glucose and amino acids like glutamate.