Exams › JEE Advanced › Chemistry

How many peptide bonds are present in a tripeptide?

1. 1
2. 2
3. 3
4. 4

Correct answer: 2

Solution

When amino acids condense to form a peptide, each successive amino acid adds one peptide bond. For n amino acids, there are (n-1) peptide bonds. For a tripeptide, n = 3, so there are 3 - 1 = 2 peptide bonds.

Related JEE Advanced Chemistry questions

• How many phenylhydrazine molecules are required to react with one glucose molecule to form an osazone?
• What is the total number of asymmetric carbon atoms present in a 2-ketohexose molecule?
• Which of the following amino acids contains a secondary (2 degrees) amino group in its structure?
• D-Glucose (an aldohexose with structure CHO-(CHOH)4-CH2OH) is treated with NaBH4. How many optically active isomers of the product are possible?
• A decapeptide has a molecular weight of 796. On complete hydrolysis it yields glycine (molecular weight 75), alanine, and phenylalanine as the only products. If glycine contributes 47.0% of the total weight of all hydrolysis products, how many glycine units are present in the decapeptide?
• How many chiral centres are present in the structure of penicillin G (benzylpenicillin)?

⚔️ Practice JEE Advanced Chemistry free + battle 1v1 →