Biomolecules Question 13

13. The figure shows a hypothetical tetrapeptide portion of a protein with parts labelled A-D. Which one of the following option is correct?

![](https://temp-public-img-folder.s3.amazonaws.com/images/Disha 33 Years NEET Solved Papers - Biology_images/2024_02_27_ee44b2483176d7cec21cg-129.jpg)

(a) $A$ is the sulphur containing amino acid methionine

(b) D is the acidic amino acid - glutamic acid

(c) $C$ is an aromatic amino acid - tryptophan

(d) $A$ is the $C$ - terminal amino acid and $D$ is $N$ terminal amino acid

Show Answer

Answer : b

Hints & Solutions

(b) Glutamic acid and aspartic acid are acidic amino acids with two carboxylic groups and one amino group.