Question

what molecule is this? monosaccharides nucleotide fatty acid amino acid

Explanation:

Amino acids have a central carbon atom bonded to an amino group ($\ce{-NH2}$), a carboxyl group ($\ce{-COOH}$), a hydrogen atom, and a side chain (R - group). In the given structure, we can identify the amino group (part with $\ce{N}$ and $\ce{H}$ atoms), the carboxyl group (part with $\ce{-COOH}$), and the side chain (the hydrocarbon part attached to the central carbon). Monosaccharides are simple sugars with a general formula $\ce{(CH2O)_n}$ and have a ring or linear structure with multiple hydroxyl groups. Nucleotides consist of a nitrogen - containing base, a pentose sugar, and a phosphate group. Fatty acids have a long hydrocarbon chain with a carboxyl group at one end and no amino group.

Answer:

Amino acid