True statements about ions composition in body

True statements about ions composition in body
a) Intracellular & Extra cellular ions compositions are same
b) Phosphorus and Mg++ are major ions intracellularly
c) Na+,CI- principal ions in ECF
d) Kidney tightly regulates Na+, K+,Cl- composition

1.bcd
2.acd
3.ac
4.bd

Explanation:

Predominant Ions

ECF- Na+, Cl-, HCO3-, Ca+2

ICF- K+, Mg+2, protein, PO4-