JEE Main 2026 — Biomolecules Question with Solution
JEE Main 2026 (21 January Shift 1)
Question
Identify the correct statements.
A. Arginine and Tryptophan are essential amino acids.
B. Histidine does not contain heterocyclic ring in its structure.
C. Proline is a six membered cyclic ring amino acid.
D. Glycine does not have chiral centre.
E. Cysteine has characteristic feature of side chain as .
Choose the correct answer from the options given below :
A. Arginine and Tryptophan are essential amino acids.
B. Histidine does not contain heterocyclic ring in its structure.
C. Proline is a six membered cyclic ring amino acid.
D. Glycine does not have chiral centre.
E. Cysteine has characteristic feature of side chain as .
Choose the correct answer from the options given below :
Choose an option
Show full solutionCorrect option: A
Correct answer
AA and D Only
Step-by-step explanation
A. Arginine and Tryptophan are essential amino acids - True
B. Histidine contains imidazole ring (heterocyclic ring with N) - Statement is False
C. Proline has a 5-membered pyrrolidine ring, not 6-membered - False
D. Glycine () has no chiral center (α-carbon has two H atoms) - True
E. Cysteine side chain is (thiol). is the side chain of Methionine, not Cysteine - False
Correct statements: A and D only
B. Histidine contains imidazole ring (heterocyclic ring with N) - Statement is False
C. Proline has a 5-membered pyrrolidine ring, not 6-membered - False
D. Glycine () has no chiral center (α-carbon has two H atoms) - True
E. Cysteine side chain is (thiol). is the side chain of Methionine, not Cysteine - False
Correct statements: A and D only
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Biomolecules chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2026, covering the Biomolecules chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.