JAMB Biology 1983 Question 13

Question 13

Excretion

Which of the following substances is NOT found in urine?

A.Water
B.Sodium chloride
C.Nitrogenous compounds
D.Calcium chloride
E.Nitrogenous salts

Show the answer and explanation

Answer: D (Calcium chloride)

Explanation

Urine is mainly water with urea and other nitrogenous compounds and salts such as sodium chloride. Calcium chloride is not one of its normal components.