Question

Main function of kidney is
(a) passive absorption
(b) ultrafiltration
(c) selective reabsorption
(d) both (b) & (c)

Answer 1

Answer: (d)both b) and c)

Explanation: kidney absorbs amino acids , execcive water and salts . And also it contains nephron Wich are the filteration unit of the body .

Answer 2

Main functions of kidney are both the ultrafiltration and the selective absorption. (option d)

• The main task of the kidney is to produce urine through the nitrogen filtration of the of the liquid waste material of our body.

• This urine production includes ultrafiltration and the selective reabsorption of the necessary minerals.

• That's why both the ultrafiltration and the selective reabsorption are important functions of the kidney.