In this article we will discuss about the molecular structure of proteins with the help of diagrams. Quantitatively, proteins are the chief organic components of most living organisms, as also of viruses. About 50% of the dry weight of bacterial cells is protein. The flagella, pili and fimbriae are made up entirely of proteins, and the cell membrane, cytoplasm, ribosomes [...]
In this article we will discuss about the molecular structure of lipids. Lipids are another group of important biological molecules present in all cellular organisms and some viruses. Unlike the other groups of biological molecules, lipids are highly heterogenous in chemical structure. But all of them possess a common physical property which is that they are all non-polar compounds, insoluble [...]
In this article we will discuss about metabolism of fatty acids. Most of the naturally occurring neutral fats and oils are esters of glycerol and long-chain fatty acids, the most common among them being palmitic acid (C16-saturated fatty acid) and stearic acid (Cig-saturated fatty acid). The degradation of fats begin with hydrolytic cleavage of fatty acids by the enzymes, lipases. [...]