Amino Acids and Protein Structure
Understand amino acid classification, zwitterions, peptide bonds, protein structural levels, and denaturation.
Why this shows up in the exam
You need to identify amino acids, protein structures, and predict effects of denaturation in exams.
How NEET tests this
Practise it
These are real questions from past NEET papers that test this exact idea.
Which of the statements about “Denaturation" given below are correct? (1) Denaturation of proteins causes loss of secondary and tertiary structures of the protein. (2) Denaturation leads to the conversion of double strand of DNA into single strand. (3) Denaturation affects primary structure which gets distorted.
Push further
More challenging30 harder questions built from the past papers above — a step up in difficulty, with distractors designed so you can't get there by elimination. Written and checked by our reviewers, not from a real paper.
In a polypeptide chain, the C-N bond connecting the carbonyl carbon of one amino acid to the nitrogen of the next amino acid has a bond length of approximately 1.33 Å. A typical C-N single bond has a length of about 1.47 Å, and a C=N double bond has a length of about 1.27 Å. What is the primary reason for the observed C-N bond length in the peptide bond?
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