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

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 $M e S - C H_{2} - C H_{2} - .$

Choose the correct answer from the options given below : [2026]

Smart Achievers · Accepted Answer

(2)

· Histidine does contain heterocyclic ring.

· Proline is a five membered cyclic ring amino acid.

· Cysteine has characteristic feature of side chain as ${CH}_{2} - SMe$ .

Solution

1 C and D Only

2 A and D Only

3 B and E Only

4 C and E Only

Ans.
(2)

· Histidine does contain heterocyclic ring.

· Proline is a five membered cyclic ring amino acid.

· Cysteine has characteristic feature of side chain as ${CH}_{2} - SMe$ .

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