A) formation of those substances which have some role in the body
B) removal of such substances which have never been part of the body
C) removal of useless substances and substances present in excess
D) all of the above
Correct Answer: C
Solution :
Metabolism of food materials produce some waste materials. Removal of these waste materials from the body is called excretion. The principle waste products of metabolism are carbondioxide, ammonia, urea, uric acid, creatinine, various pigments and inorganic salts. Of these carbondioxide is universal metabolic waste.
You need to login to perform this action.
You will be redirected in
3 sec
