What is an amino acid?

Amino acids are organic compounds that contain amino and carboxylate functional groups, along with a side chain specific to each amino acid.

Explanation:

Amino acids are small molecules that are the building blocks of proteins. Chemically, an amino acid is a molecule that has a carboxylic acid group and an amine group that are each attached to a carbon atom called the α carbon.

the answer would be d : p

1) a

2)c

3)a

4)c

5)b

hope this , if so, your appreciation would be signified through giving   me brainliest, and a you : ) have any further questions? feel   free to ask me in the questions box.