The basic unit into which the DNA is packed in organisms is the chromosome. These are composed of DNA containing the genetic material and histone proteins which help package them. The DNA having an overall negative charge bonds with the positively charged histone proteins making a complex called chromatin.y admin. DNA vs Chromosome. Nucleic acid constitutes the genetic material of all living organisms. These are polymers made up of sub-units called nucleotides. Nucleotide has three components, a five-carbon sugar, a nitrogen base and phosphoric acid.
The term lipid commonly refers to fats, which are known chemically as triglycerides. Triglycerides are organic molecules that contain three different types of elements: carbon, hydrogen, and oxygen. But technically, lipids are a class of molecules that includes triglycerides, phospholipids, steroids, and waxes. So if you wanted to know what elements are found in lipids as a class, you'd have to allow for phosphorus as well, since phospholipids contain phosphorus in addition to carbon, hydrogen, and oxygen.
Lipids are large molecules made from smaller units of fatty acids and glycerol. The structure of a lipid molecule. In the diagram, you can see how three long chains of carbon atoms are attached to a glycerol molecule, with its three carbon atoms. They are esters made from fatty acids and glycerol. 2  lipid Fat or oils composed of fatty acids and glycerol. 3  metabolism All the chemical reactions in the cells of an organism, including respiration. 4  molecule A collection of two or more atoms held together by chemical bonds.