Question

What are essential elements ? How are they classified ? Write the physiological role of essential elements.

Answer 1

Essential elements are minerals, which are directly involved in metabolism. They are essential for reproductive phase, and for proper growth of body. These are of two types, macroelements and microelements.

The macroelements are C,H,O,N,P,K,S,Mg,Ca, and the microelements are Fe,Zn,Mg,B,Cl,Ni,Cu,Ni.