Q.Write the name of any one aminoacid, sugar, nucleotide and fatty acid.

• An amino acid is a small organic molecule with an amino group and a carboxyl group on its alpha-carbon; glycine, the simplest one, has a hydrogen atom as its R group.
• A sugar is a carbohydrate biomolecule; glucose, with the formula of six carbons, twelve hydrogens and six oxygens, is a common example.
• A nucleotide is a nitrogen base joined to a sugar and a phosphate group; adenylic acid, built around the base adenine, is one example. …

Each major class of small biomolecule can be illustrated with one clear, well-defined example:

• Amino acid - glycine is the simplest amino acid, its alpha-carbon carrying an amino group, a carboxyl group, a hydrogen atom, and a hydrogen atom again as its R group.
• Sugar - glucose is a hexose sugar with the molecular formula made of six carbons, twelve hydrogens and six oxygens, one of the small organic molecules found in the acid-soluble pool of a cell. …

Method: Recalling One Representative Example per Biomolecule Class

This question only asks for one example of each class, so the strategy is to keep a short mental "reference list" of the simplest, most commonly cited member of each biomolecule category, rather than trying to reconstruct the full classification scheme under exam pressure.

For amino acids, glycine is the safest choice because it is the simplest one (its side chain is just a hydrogen atom), so it is easy to describe correctly. For a sugar, glucose is the standard choice since it is the most familiar hexose and its formula (six carbons, twelve hydrogens, six oxygens) is easy to recall. For a nucleotide, remember that a nucleotide = base + sugar + phosphate, so naming a specific one like adenylic acid (built on the base adenine) works well because you can also explain what it's made of. For a fatty acid, pick one with a definite carbon count, such as palmitic …