Types of bioelements

We can group bioelements in two groups:


PRIMARY BIOELEMENTS:

They are indispensable to form organic biomolecules. They are: Carbon (C), Hydrogen (H), Oxigen (O), Nitrogen (N).


SECONDARY  BIOELEMENTS:

These are in lower proportion than the others. Some of them are: Calcium (Ca),  Sodium (Na), Potassium (K), Magnesium (Mg)...