

Biomolecules JEE Notes: These are organic compounds important for life, forming the chemical basis of living organisms. They include carbohydrates, proteins, lipids, nucleic acids, and vitamins. For JEE, understanding their structure, functions, and reactions is important.
Carbohydrates provide energy, proteins act as enzymes and structural units, lipids store energy, and nucleic acids (DNA & RNA) carry genetic information. Topics like amino acids, peptide bonds, enzymes, and metabolism are often tested in the JEE exam.
These JEE notes simplify complex biochemical concepts through clear explanations, diagrams, and reactions, helping students quickly revise and strengthen their understanding for JEE Main and Advanced preparation. Also, keep in mind to clear all your doubts with your teachers or friends so that nothing is left, and you can do well in your examination.
To help students revise properly, we have provided a Biomolecules JEE Notes PDF below for students. This JEE PDF includes all important concepts, formulas, and reactions covered in the JEE syllabus.
It explains carbohydrates, proteins, lipids, nucleic acids, and enzymes in a simple, structured manner to students for quick understanding. These JEE notes are ideal for last-minute review and clarifying concepts. You can download the Biomolecules JEE Notes PDF from the link below and boost your preparation for JEE Main and Advanced:
Check below for the important questions on Biomolecules for JEE. These JEE questions cover all key topics such as carbohydrates, proteins, amino acids, nucleic acids, and enzymes. Practicing them will help strengthen your conceptual understanding and improve problem-solving skills for JEE Main and Advanced examinations:
Answer: Biomolecules are organic compounds that form the basis of life. They include carbohydrates, proteins, lipids, nucleic acids, vitamins, and enzymes.
Answer: Carbohydrates are optically active polyhydroxy aldehydes (aldoses) or ketones (ketoses) or compounds that yield these units on hydrolysis.
Answer:
Reducing sugars: All monosaccharides and disaccharides (except sucrose) that can reduce reagents like Benedict’s solution.
Non-reducing sugars: Polysaccharides like starch and cellulose that do not reduce such reagents.
Answer: The change in optical rotation of a sugar solution when it stands in water due to interconversion between α and β anomers is called mutarotation.
Answer: Anomers are cyclic monosaccharides that differ in configuration at the anomeric carbon (C1 in aldoses, C2 in ketoses).
Answer: Monosaccharides that differ in configuration at any carbon atom other than the anomeric carbon are called epimers (e.g., glucose and galactose).
Answer: Sucrose (C₁₂H₂₂O₁₁) consists of one glucose and one fructose unit and is a non-reducing sugar.
Answer: Starch consists of two components:
(i) Amylose (20%) – unbranched and water-soluble.
(ii) Amylopectin (80%) – branched and water-insoluble.
Answer: Glycogen is a polymer of α-D-glucose found in animals, mainly in the liver and muscles, serving as a reserve food material.
Answer: Amino acids are compounds containing both amino (–NH₂) and carboxylic (–COOH) groups. They are the building blocks of proteins.
Answer:
Essential amino acids: Cannot be synthesized by the body and must be obtained from food.
Non-essential amino acids: Can be synthesized in the body.
Answer: The bond formed between the –COOH group of one amino acid and the –NH₂ group of another by elimination of water is called a peptide bond (–CO–NH–).
Answer: Denaturation is the process by which the native (functional) structure of a protein changes due to heat or chemicals, causing loss of biological activity.
Answer:
(i) Biuret test – violet color
(ii) Millon’s test – red color
(iii) Xanthoproteic test – yellow to orange color
(iv) Iodine test – yellow color
Answer:
|
Feature |
DNA |
RNA |
|
Sugar |
Deoxyribose |
Ribose |
|
Bases |
A, G, C, T |
A, G, C, U |
|
Function |
Carries genetic information |
Helps in protein synthesis |
Check below for the benefits of using Biomolecules JEE Notes. These JEE notes include concise theory, Biomolecules formulas JEE, solved examples, and important questions designed as per the latest JEE pattern. They help in quick revision, concept clarity, and effective exam preparation for both JEE Main and Advanced.
Covers Complete JEE Syllabus Efficiently
The Biomolecules JEE notes include every topic from carbohydrates, proteins, and enzymes to nucleic acids, making sure complete syllabus coverage for both JEE Main and Advanced. Also, along with syllabus, clear your doubts at every step.
Quick Revision of Biomolecule Formulas
All JEE Biomolecules formulas are listed in a simple, easy-to-revise format. This helps you recall chemical structures, reactions, and mechanisms faster during revision. Always use this type of sheet or notes for revision.
Concept Clarity Through Simplified Explanations
Each topic in the JEE main notes for Biomolecules is explained in a clear and structured way, making it easier to understand complex biochemical reactions. Always focus on concepts and not just on the learning part.
Exam-Oriented JEE Important Questions
The Biomolecules important questions JEE section provides frequently asked problems from previous year papers, helping you focus on high-weightage areas. Focus on the chapters that are asked most in the exam.
Step-by-Step Solved Examples
The Biomolecules solved examples JEE give a detailed approach to problem-solving, showing how to apply theory and formulas to numerical and conceptual questions.
Perfect for Last-Minute Preparation
The concise format of the Biomolecules JEE notes allows quick revision before exams without missing any critical point or reaction.
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