NEET2023Chemistrys Block ElementsActual
Which one of the following statements is correct?
Options
- AMg plays roles in neuromuscular function and interneuronal transmission.
- BThe daily requirement of Mg and Ca in the human body is estimated to be 0 . 2 - 0 . 3   g .
- CAll enzymes that utilise ATP in phosphate transfer require Ca as the cofactor.
- DThe bone in human body is an inert and unchanging substance.
Correct answer
B. The daily requirement of Mg and Ca in the human body is estimated to be 0 . 2 - 0 . 3   g .
Step-by-step solution
An adult body contains about 25   g of Mg and 1200   g of 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