Question

Match the following categories of elements on the basis of their function:

• A. Ca, K
• B. Mg, Zn
• C. Mg, P
• D. C, H, O, N

Answer 1

On the basis of their functions, essential elements can be grouped into four categories:

1. Elements as components of biomolecules and hence, structural elements of cells (e.g., C, H, O, N)
2. Elements that are components of energy related. (e.g., Mg and P)
3. Elements that activate or inhibit enzymes. (e.g., Mg and Zn)
4. Elements that maintain osmotic potential. (e.g., Ca and K)