Abstract

The mechanisms of biosynthesis of bacterial macromolecules are presented. Bacterial macromolecules
are large molecules that are formed by the polymerization of smaller molecules called monomers. They
are essential for life and are synthesized from repeated linking of smaller organic molecules. The
biosynthesis of bacterial macromolecules involves the combination of monomers to form polymers
through dehydration synthesis and the input of energy which is obtained through various metabolic
pathways.
Considering all life forms on Earth, from the smallest prokaryote to the largest eukaryote, there are four
major classes of organic macromolecules that are always found and are essential to life. These molecules
are carbohydrates, lipids, proteins and nucleic acids. All of these major macromolecule classes are
similar, in that, they are large polymers that are assembled from small repeating monomer subunits. The
monomer units for carbohydrates are sugar residues, whereas, the monomers for lipids are fatty acids
and glycerol, for proteins are amino acids and for building the nucleic acids, DNA and RNA, are the
nucleotide bases. They are a vital energy source for the organisms, provide structural support to many
organisms, serve as receptors for cellular recognition, structural components of cell membranes, support
growth, maintenance, transport of nutrients, storage cellular signalling and expression of genetic
information, respectively.
Understanding the biosynthesis of bacterial macromolecules not only deepens the comprehension of
biology, provides insights into disease mechanisms and potential therapeutic target, but also opens doors
for applications in biotechnology, medicine, and the development of novel treatments of bacterial
diseases.

UN SDGs

Good Health and Wellbeing