Question

Which element is present in all proteins,but not necessarily in fats or carbohydrates

Answer 1

Nitrogen is the key element in proteins and amino acids. It is (in most cases) not present in carbohydrates and fats. Nitrogen is the key element in proteins and amino acids. It is (in most cases) not present in carbohydrates and fats. oh, well i guess she answered first

Answer 2

Nitrogen is the key element in proteins and amino acids. It is (in most cases) not present in carbohydrates and fats. Nitrogen is the key element in proteins and amino acids. It is (in most cases) not present in carbohydrates and fats.

:)