NEET Zoology Proteins MCQ Question
Which combination of statements about protein structure is correct?
The N-terminal amino acid is the first amino acid in a protein chain and proteins have a tertiary structure that is essential for their function.
Proteins have only one stable form and the C-terminal amino acid is located at the beginning of the protein chain.
All regions of a protein chain are arranged as helices and tertiary structure is not necessary for protein function.
Protein threads are rigid rods throughout their length and only left-handed helices are observed in proteins.
Correct Answer
Detailed Explanation
The N-terminal amino acid is indeed the first amino acid in the protein chain, and the tertiary structure is crucial for the biological functions of proteins. The other options contain inaccuracies regarding protein structure and configurations.
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