Q147 / 200 · MHT CET - Medical 2026 (21 April Shift 2) · Chemistry
Identify the functional group / groups found in amino acid.
- ACOOH
- B$\text{CH}_3$
- C$\text{NH}_2$
- Correct answerDCOOH and $\text{NH}_2$
Solution
Amino acids are organic molecules that serve as the building blocks of proteins.
The general structure of an alpha-amino acid consists of a central carbon atom (the alpha carbon) bonded to an amino group ($\text{-NH}_2$), a carboxyl group ($\text{-COOH}$), a hydrogen atom, and a variable side chain (R group).
Therefore, the functional groups characteristically found in all amino acids are the carboxyl group ($\text{COOH}$) and the amino group ($\text{NH}_2$).
Answer: COOH and $\text{NH}_2$
The general structure of an alpha-amino acid consists of a central carbon atom (the alpha carbon) bonded to an amino group ($\text{-NH}_2$), a carboxyl group ($\text{-COOH}$), a hydrogen atom, and a variable side chain (R group).
Therefore, the functional groups characteristically found in all amino acids are the carboxyl group ($\text{COOH}$) and the amino group ($\text{NH}_2$).
Answer: COOH and $\text{NH}_2$
Hence, the correct answer is option: 'D'.