COMEDK · Chemistry · 30. Biomolecules
Which of the following amino acid \(\left(\mathrm{NH}_{2} \mathrm{CH} R \mathrm{COOH}\right)\) contains polar \(R\) group?
- A Alanine
- B Valine
- C Glycine
- D Glutamine
Answer & Solution
Correct Answer
(D) Glutamine
Step-by-step Solution
Detailed explanation
The structure of an amino acid is \(\mathrm{NH}_{2}CH(R)\mathrm{COOH}\). The polarity of the \(R\) group depends on the presence of functional groups capable of hydrogen bonding or having a dipole moment. Alanine has \(R = -\mathrm{CH}_{3}\), which is non-polar. Valine has…
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