
Peptides are
A. Esters
B. Salts
C. Amides
D. Ketones
Answer
161.1k+ 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 Mock Test Series Class 12 Chemistry for FREE

Classification of Drugs Based on Pharmacological Effect, Drug Action

JEE Electricity and Magnetism Important Concepts and Tips for Exam Preparation

JEE Energetics Important Concepts and Tips for Exam Preparation

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility, & More

JEE Main 2025: Derivation of Equation of Trajectory in Physics

Electric Field Due to Uniformly Charged Ring for JEE Main 2025 - Formula and Derivation

Displacement-Time Graph and Velocity-Time Graph for JEE

JEE Main 2026 Syllabus PDF - Download Paper 1 and 2 Syllabus by NTA

JEE Main Eligibility Criteria 2025

Other Pages
JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

NCERT Solutions for Class 12 Chemistry Chapter 1 Solutions

JEE Advanced 2025: Dates, Registration, Syllabus, Eligibility Criteria and More

NCERT Solutions for Class 12 Chemistry Chapter 2 Electrochemistry

NCERT Solutions for Class 12 Chemistry Chapter 6 Haloalkanes and Haloarenes

Solutions Class 12 Notes: CBSE Chemistry Chapter 1
