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Which type of interaction between polypeptide chains is mainly responsible for maintaining the secondary structure of a protein in the form of an alpha helix? A covalent bonds B hydrogen bonds C ionic interactions D van der Waals forces - AQA - A-Level Chemistry - Question 32 - 2022 - Paper 3
Question 32
Which type of interaction between polypeptide chains is mainly responsible for maintaining the secondary structure of a protein in the form of an alpha helix? A cov... show full transcript
Worked Solution & Example Answer:Which type of interaction between polypeptide chains is mainly responsible for maintaining the secondary structure of a protein in the form of an alpha helix? A covalent bonds B hydrogen bonds C ionic interactions D van der Waals forces - AQA - A-Level Chemistry - Question 32 - 2022 - Paper 3
Step 1
Identify the Correct Interaction
Answer
The correct interaction responsible for maintaining the secondary structure of a protein in the form of an alpha helix is:
B hydrogen bonds.
Hydrogen bonds play a crucial role in stabilizing the helical structure by forming between the carbonyl oxygen of one amino acid and the amide hydrogen of another, facilitating the formation of the alpha helix.