A peptide chain attains secondary structure through the formation of:
Correct answer: B. Hydrogen bond
- A. Peptide bond
- B. Hydrogen bond
- C. Ionic bond
- D. Disulphide bond
Explanation
The secondary structure of proteins is primarily stabilized by hydrogen bonds. These bonds occur between the carbonyl oxygen and the amide hydrogen of the peptide backbone, leading to formations such as alpha-helices and beta-sheets. In contrast, peptide bonds create the linear sequence of amino acids and define the primary structure. Ionic bonds and disulphide bonds are more relevant to the tertiary structure, where they contribute to the protein's overall three-dimensional shape.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
Practise Biological Molecules
1,790 free Biological Molecules MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Biological Molecules questions
Unsaturated fats are made saturated by:
The number of oxygen atoms in lipid molecules is always _ as compared several carbon atoms.
Which of the following statement is not true for compounds like glycoproteins and glycolipids?
High specific heat capacity plays a key role in:
It has a more liquid-like consistency than others:
Which of the following type of RNA is catalytic in nature?