The peptide bond is a:

Correct answer: A. C-N link

  • A. C-N link
  • B. C-O link
  • C. N-H link
  • D. C-H link

Explanation

The peptide bond is a specific type of covalent bond that occurs between two amino acids. During protein synthesis, the carboxyl group of one amino acid reacts with the amino group of another, releasing a molecule of water (condensation reaction) and forming a C-N bond, known as the peptide bond. This C-N link is crucial in linking amino acids into polypeptide chains, which fold into functional proteins. The other options describe bonds that are either part of different structures or are not involved in connecting amino acids.

Written and checked by , contributorLast updated
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