
Peptides are
A. Esters
B. Salts
C. Amides
D. Ketones
Answer
163.2k+ views
Hint: Macromolecules comprise carbohydrates, nucleic acids, proteins, and other significant biomolecules. These polymers are composed of monomers. These monomers are connected by certain bonds.
Complete step by step by answer:
Let's understand the given options in detail.
Option A is ester. Ester is a type of functional group. The structure of the ester functional group is R-CO-OR, where R is for any alkyl group. We know, a peptide is a chain of amino acids. Therefore, option A is wrong.
Option B is salts. A salt is composed of a cation and an anion. And we know that a peptide consists of amino acids. Therefore, option B is wrong.
Option D is ketones. A ketone is a functional group. The formula of a ketone is R-CO-R, where R is for any alkyl group. Therefore, option D is wrong.
Option C is amides. A chain of amino acids (amides) that is of shorter length is called a peptide. In a peptide, the amino acids are connected by peptide bonds. In a peptide, two to fifty numbers of amino acids are connected by peptide bonds. The structure of peptide bonds is (-CO-NH-)
Hence, option C is right.
Note: Peptides and proteins are differentiated only by their chain length. Peptides are of a shorter chain consisting of two to fifty numbers of amino acids and proteins consist of more than fifty numbers of amino acids. The structure of peptides is not well defined as that of a protein.
Complete step by step by answer:
Let's understand the given options in detail.
Option A is ester. Ester is a type of functional group. The structure of the ester functional group is R-CO-OR, where R is for any alkyl group. We know, a peptide is a chain of amino acids. Therefore, option A is wrong.
Option B is salts. A salt is composed of a cation and an anion. And we know that a peptide consists of amino acids. Therefore, option B is wrong.
Option D is ketones. A ketone is a functional group. The formula of a ketone is R-CO-R, where R is for any alkyl group. Therefore, option D is wrong.
Option C is amides. A chain of amino acids (amides) that is of shorter length is called a peptide. In a peptide, the amino acids are connected by peptide bonds. In a peptide, two to fifty numbers of amino acids are connected by peptide bonds. The structure of peptide bonds is (-CO-NH-)
Hence, option C is right.
Note: Peptides and proteins are differentiated only by their chain length. Peptides are of a shorter chain consisting of two to fifty numbers of amino acids and proteins consist of more than fifty numbers of amino acids. The structure of peptides is not well defined as that of a protein.
Recently Updated Pages
JEE Main 2021 July 25 Shift 1 Question Paper with Answer Key

JEE Main 2021 July 22 Shift 2 Question Paper with Answer Key

JEE Main 2025 Session 2: Exam Date, Admit Card, Syllabus, & More

JEE Atomic Structure and Chemical Bonding important Concepts and Tips

JEE Amino Acids and Peptides Important Concepts and Tips for Exam Preparation

JEE Electricity and Magnetism Important Concepts and Tips for Exam Preparation

Trending doubts
Types of Solutions

Degree of Dissociation and Its Formula With Solved Example for JEE

Classification of Drugs

Instantaneous Velocity - Formula based Examples for JEE

JEE Main Chemistry Question Paper with Answer Keys and Solutions

JEE Main Chemistry Online Mock Test for Class 12

Other Pages
Haloalkanes and Haloarenes

Alcohol Phenol and Ether Class 12 Notes: CBSE Chemistry Chapter 7

Coordination Compounds Class 12 Notes: CBSE Chemistry Chapter 5

NCERT Solutions for Class 12 Chemistry In Hindi Chapter 10 Haloalkanes and Haloarenes In Hindi Mediem

Total MBBS Seats in India 2025: Government College Seat Matrix

NEET Total Marks 2025: Important Information and Key Updates
