Question

The percentage of naturally occurring elements making up the human body (Carbon, hydrogen, oxygen, and nitrogen make up 96% of living matter. Most of the remaining 4% consists of calcium, phosphorus, potassium, and sulfurntages of these elements found in other organisms) are similar to the percentages of these elements found in other organisms. How could you account for this similarity among organisms

Answer 1

Other organisms also have high percentage of Carbon, hydrogen, oxygen, and nitrogen in comparison to calcium, phosphorus, potassium, and sulfur. The major macromolecules which build up our body is consist of carbohydrates, proteins, lipids. Besides that other macromolecule which carry genetic information and gene expression are nucleic acids (both DNA ad RNA). The building blocks of carbohydrates is monosachharides, for proteins it is amino acids, for lipids , it is fatty acid and glycerol and nucleic acids it is nucleotides. The main structural components of these monomers are carbon , nitrogen , hydrogen and oxygen. So the percentage of these elements are very high in comparison to other which play also vital roles but required in small amounts.