The individual smaller molecules are called monomers. Lipids: Lipids are nonpolar molecules that are not soluble in water. Key monomers include glucose (also known as blood sugar), fructose, and galactose.. Let us study them in brief. 2. Because the chemical behavior of many reactive atoms or groups of atoms is well characterized, the presence and position of specific functional groups on an organic molecule can be used to predict the chemical behavior of that biomolecule. Cells are largely composed of compounds that contain carbon. Body elements; Primary metabolites; Secondary metabolites. An example is starch, made of many linked glucose molecules. Identifying Functional Groups. Though there are many biomolecules based on their role in body. They not only have biological functions but also have large molecular weights and complex structures. Their function is to provide a key source of energy for cells. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Start studying Functions for 4 Biomolecules. Start studying 4 Major Biological Molecules. These giant molecules are also called macromolecules. These non-living molecules are the actual foot-soldiers of the battle of sustenance of life. Learn vocabulary, terms, and more with flashcards, games, and other study tools. When small organic molecules are joined together, they can form giant molecules or polymers. Food sources. There are 4 types of bio-molecules as. ADVERTISEMENTS: This article throws light upon the top four classes of biomolecules. Also, read – Biomolecules in Living Organisms The study of how carbon atoms interact with other atoms in molecular compounds forms the basis of the field of organic chemistry and plays a large role in understanding the basic functions of cells. These elements together constitute […] These molecules are known collectively as macromolecules, these molecules are grouped into four main categories which each have their own structure. Food sources: These are the substances which act as food materials. They give energy and nutrients to all the living beings on the earth. All Biomolecules have certain functions and these molecules all have a unique structure which is why they function in these ways. The structure of biological molecules. In addition to the main proteins and nucleic acids in biological macromolecules, there are also sugars, lipids and their combined products. They range from small molecules such as primary and secondary metabolites and hormones to large macromolecules like proteins, nucleic acids, carbohydrates, lipids etc. Biological polymers are large molecules composed of many similar smaller molecules linked together in a chain-like fashion. They include fats, phospholipids, steroids, and waxes. Biological macromolecules are important constituents of organisms. The top four classes of biomolecules are: (1) Carbohydrates (2) Lipids (3) Proteins and Amino Acids and (4) Isoprenoids and Pigments. 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