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JEE Main - Biomolecules Notes (Free PDF Download)

Last updated date: 23rd Apr 2024
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Download JEE Main Biomolecules Notes With Important Topics and Prepare Efficiently

Prepare effectively for JEE Main by downloading the Biomolecules Notes with important topics. These notes, Prepared by our master teachers, simplify complex concepts, highlight key points, and provide important topics. You can download them for free from our website. These comprehensive revision notes condense the essential information you need to know, making your preparation efficient. As you delve into the topics covered, you'll enhance your understanding and be well-prepared for the exam. Get ready to excel in JEE Main with these valuable resources at your disposal.


JEE Main Revision Notes


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JEE Main

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Chapter-wise Notes with PDF

The chapter Biomolecules discusses the study of essential organic molecules found in living organisms, their structures, functions, and significance in biological processes, which are some of the key topics for the JEE Main exams. Looking at the old JEE Main question papers, you'll see questions were from this chapter. Take a look at the table for more details.

Year Wise Weightage of Questions: JEE Main Biomolecules 

Sl. No.


Average No. Of Questions Asked

Marks per Question

Total Marks





















To reach your goals, prepare for your JEE Main 2024 exams using Vedantu’s Biomolecules Notes PDF and the JEE Main Chemistry Syllabus 2024.

Competitive Exams after 12th Science

JEE Main 2024: Must-Revise Topics in Biomolecules

Let's focus on the key topics you should review in Biomolecules. These important topics can make a real difference in your preparation. Mastering them will give you a strong edge in the upcoming exam. Let's dive into these must-revise topics to help you shine in JEE Main 2024:

  • Carbohydrates

  • Proteins

  • Lipids

  • Types of lipids

  • Nucleic Acids

  • DNA and RNA structure

  • Enzymes and Enzyme Kinetics

  • Factors affecting enzyme activity

  • Hormones and Signaling Molecules

  • Vitamins and Coenzymes

  • Nucleic Acid Manipulation

  • Biological Processes

  • Biological Macromolecules

  • Biological Functions and Importance

Physics Notes for JEE Main 2024 Chapters: Links Available

Make your JEE Main Chemistry studying for 2024 even better using our notes organized by chapter. Find the links in the table below for easy access.

Why Notes of Biomolecules Important For JEE Main 2024?

In the realm of the JEE Main 2024 preparation, the chapter "Biomolecules" assumes a position of exceptional significance. This chapter delves into the intricacies of essential organic molecules that form the building blocks of life. Understanding biomolecules facilitates success in the examination and provides a foundational understanding of the molecular basis of life processes and their applications in various scientific disciplines. Here are some key features of this chapter:


  • Monosaccharides: Mastery over the structures of glucose, fructose, and their isomers is pivotal for understanding their roles in energy metabolism.

  • Polysaccharides: Knowing the structures of cellulose, starch, and glycogen aids in comprehending their distinct functions in plants and animals.


  • Amino Acids: Grasping the classification and properties of amino acids forms the bedrock for understanding protein structure and function.

  • Enzymes: Understanding the specificity, catalysis, and regulation of enzymes is crucial for comprehending biochemical reactions.


  • Fatty Acids: Knowing the differences between saturated and unsaturated fatty acids contributes to understanding lipid properties and roles.

  • Membrane Lipids: Understanding phospholipid bilayers is essential in comprehending cell membrane structure.

Nucleic Acids:

  • DNA and RNA Structure: The structure of nucleotides, base pairing, and the double helix model are fundamental concepts in genetics and molecular biology.

  • Genetic Information: Realizing the genetic code, codons, and translation is vital for comprehending protein synthesis.

Enzyme Kinetics and Signaling:

  • Enzyme Kinetics: Grasping the Michaelis-Menten equation and factors affecting enzyme activity is essential for understanding enzymatic reactions.

  • Cell Signaling: Understanding hormone functions and signaling pathways provides insights into cellular communication.

Importance in JEE Main 2024:

  • Conceptual Application: A solid grasp of biomolecules aids in answering diverse questions in the chemistry and biology sections of JEE Main.

  • Interdisciplinary Relevance: Biomolecules are at the crossroads of chemistry and biology, laying a foundation for broader scientific understanding.

  • Real-world Applications: Knowledge of biomolecules extends beyond exams to real-world applications in medicine, biotechnology, and environmental science.

From here, it is clear that the Biomolecules chapter is important to cover before appearing for JEE Main 2024. You can learn the topics easily by downloading the Biomolecules Notes and by making a quick revision.

Biomolecules Formulas To Learn With Notes

JEE Main formulas are important for doing well in the exam. Using them with organized revision notes becomes useful for understanding everything well. While you go over your JEE Main notes, include the related formulas. First, understand why the formula is used by looking at the notes, and then try it on practice problems. This mix helps you understand better, remember more, and get better at solving problems. These are all very important for doing great in JEE Main 2024. You can get the essential JEE Main Chemistry Formula PDF for free from Vedantu’s website and get higher scores in your JEE Main 2024 Exams.

Important Concepts of Biomolecules for JEE Main

1. Amino Acid Structure: The general structure of an amino acid is given by: 


2. Peptide Bond Formation: The formation of a peptide bond between two amino acids is a condensation reaction, and the resulting dipeptide can be represented as: 

$\text{NH}_2\text{-}CH(R_1)\text{-}COOH + \text{NH}_2\text{-}CH(R_2)\text{-}COOH \rightarrow \text{NH}_2\text{-}CH(R_1)\text{-}CO\text{-}NH\text{-}CH(R_2)\text{-}COOH + \text{H}_2O$

3. Nucleotide Structure: The structure of a nucleotide includes a phosphate group, a pentose sugar (ribose or deoxyribose), and a nitrogenous base. It can be represented as: 

$\text{5' - P - (sugar) - (base) - 3'}$

4. DNA Double Helix Structure: The double helix structure of DNA is represented by the Watson-Crick model, where adenine (A) pairs with thymine (T) and guanine (G) pairs with cytosine (C). The equation is: 

$A=T, \quad G\equiv C$

5. Monosaccharide Structure: The general structure of a monosaccharide is given by: 


6. Henderson-Hasselbalch Equation: For calculating the pH of a buffer solution, the Henderson-Hasselbalch equation is used:

$\text{pH} = \text{pKa} + \log\left(\frac{\text{[A^-]}}{\text{[HA]}}\right)$

7. Michaelis-Menten Equation: Describing enzyme kinetics, the Michaelis-Menten equation is: 

$V_0 = \frac{{V_{\text{max}} \cdot [\text{S}]}}{{K_m + [\text{S}]}}$

Next Steps: Further Resources for JEE Main 2024 Biomolecules

Ready to take your JEE Main 2024 Biomolecules preparation up a notch? Delve into these crucial resources:

  • Practice Papers: Hone your skills with targeted practice.

  • Mock Tests: Simulate exam conditions and boost your confidence.

  • Sample Papers: Familiarize yourself with the question patterns.

  • Previous Year Question Papers (PYQPs): Gain insights into the exam's structure and trends.

Combine resources to refine your understanding and exam-taking abilities. Elevate your performance for JEE Main 2024!Here are the links for the additional resources of JEE Main 2024:

Get Ahead in Your Exams with Vedantu’s JEE Main Notes

Vedantu's Biomolecules JEE Main Notes are your trusted companion in your journey towards exam success. Our unique approach, combining expert guidance and student-friendly resources, sets us apart. With comprehensive revision notes at your fingertips, complex concepts become clear, and preparation becomes more efficient. What's more, these valuable resources are available to you as FREE PDFs. Trust Vedantu to help you stride confidently towards acing your exams. Elevate your learning experience, simplify your studies, and embrace excellence with Vedantu.

FAQs on JEE Main - Biomolecules Notes (Free PDF Download)

1. Which are the important topics of Biomolecules Notes for JEE Main 2024?

The important topics of Biomolecules Notes for JEE Main 2024 are:

  • Carbohydrates: This topic covers the structure and properties of carbohydrates, such as sugars, starch, and cellulose.

  • Proteins: This topic covers the structure and properties of proteins, such as amino acids, enzymes, and hormones.

  • Lipids: This topic covers the structure and properties of lipids, such as fats, oils, and waxes.

  • Nucleic Acids: This topic covers the structure and properties of nucleic acids, such as DNA and RNA.

2. Which is the easiest topic of JEE Main 2024 Biomolecules Notes?

The easiest topic of JEE Main 2024 Biomolecules Notes is carbohydrates. This topic is relatively straightforward and does not require a lot of in-depth knowledge.

3. How to learn using JEE Main 2024 Biomolecules Notes?

Here are some tips on how to learn using JEE Main 2024 Biomolecules Notes:

  • Start by reading the notes carefully and making sure you understand the key concepts.

  • Practice solving problems from the notes or from practice questions. This will help you solidify your understanding of the concepts.

  • Join a test series that includes questions from the Biomolecules chapter. This will help you get a feel for the type of questions that are asked in the exam.

Get help from a tutor or mentor if you are struggling with any of the concepts.

4. Are JEE Main 2024 Biomolecules Notes recommended for last-minute revision?

Yes, JEE Main 2024 Biomolecules Notes can be helpful for last-minute revision. However, it is important to note that they are not a substitute for a comprehensive study of the chapter.

5. Where can I find additional resources to supplement JEE Main 2024 Biomolecules Notes?

There are a number of additional resources available to supplement JEE Main 2024 Biomolecules Notes. These include:

  • Textbooks: There are a number of good textbooks available on biomolecules. Some popular choices include "Biomolecules" by Voet and Voet, and "Biochemistry" by Lehninger.

  • Practice Problems: There are a number of practice problems available online and in books. These can be a great way to test your understanding of the concepts and to practice solving problems.

  • Online Courses: There are a number of online courses available on biomolecules. These can be a convenient way to learn the material at your own pace.

6. How much time is required to prepare for JEE Main 2024 Biomolecules Notes?

The amount of time required to prepare for JEE Main 2024 Biomolecules Notes depends on your individual strengths and weaknesses. If you are already familiar with the concepts, you may only need a few weeks to review the material. However, if you are starting from scratch, you may need to spend a few months to learn the concepts and practice solving problems.

7. What is the weightage of Biomolecules Notes for JEE Main 2024?

The weightage of Biomolecules Notes for JEE Main 2024 is around 10-15%. This means that there are typically 1-2 questions asked from this chapter.