Q66 / 200 · NEET 2023 (All India) · Chemistry

Which one of the following statements is correct?

A
$Mg$ plays roles in neuromuscular function and interneuronal transmission.
Correct answer
B
The daily requirement of $Mg$ and $Ca$ in the human body is estimated to be $0.2 - 0.3 g$ .
C
All enzymes that utilise ATP in phosphate transfer require $Ca$ as the cofactor.
D
The bone in human body is an inert and unchanging substance.

Solution

An adult body contains about

25 g

Mg

and

1200 g

Ca

compared with only

5 g

of iron and

0.06 g

of copper. The daily requirement in the human body has been estimated to be

200 - 300 mg

Hence, the correct answer is option: 'B'.