JEE Main Biomolecules: Weightage, Key Concepts and Study Plan
Biomolecules in JEE Main: 108 questions across 2022–2026, rank #17 of 20 in Chemistry, stable momentum. Year-wise data, key concepts and a study plan.
Edurack
October 21, 2026
Biomolecules is a lighter-weight chapter in JEE Main Chemistry: it ranks #17 of 20, so it adds a few questions rather than a block of them. Here is what five years of JEE Main questions say about it, and how to prepare.
At a glance
- 108 questions across 2022–2026, all shifts
- 3.7% of Chemistry over five years and 3.7% in 2024–2026
- Rank #17 of 20 Chemistry chapters by recent weight
- Momentum: Stable
- Asked in 5 of 5 years; busiest year 2022 with 30 questions
- 22 questions in the 2026 papers
Year-wise questions
| Year | 2022 | 2023 | 2024 | 2025 | 2026 | Total |
|---|---|---|---|---|---|---|
| Questions | 30 | 22 | 16 | 18 | 22 | 108 |
How Biomolecules compares inside Chemistry
| Rank | Chapter | Total Qs | 2024–26 share | Momentum |
|---|---|---|---|---|
| 15 | Organic Compounds Containing Nitrogen | 126 | 4.2% | Stable |
| 16 | Classification of Elements and Periodicity | 82 | 3.8% | Gaining |
| 17 | Biomolecules | 108 | 3.7% | Stable |
| 18 | Purification and Characterisation of Organic Compounds | 94 | 3.6% | Stable |
| 19 | Organic Compounds Containing Halogens | 58 | 2.5% | Stable |
Concepts that repeat
These specific ideas came back most often inside Biomolecules.
| Concept | 2022 | 2023 | 2024 | 2025 | 2026 | Total |
|---|---|---|---|---|---|---|
| Disaccharides and Polysaccharides | 11 | 7 | 1 | 1 | 1 | 21 |
| Proteins | 7 | 5 | 1 | 0 | 3 | 16 |
Start your practice with these. Each one has appeared in several different years, so it is worth knowing the question styles.
What the syllabus covers
Carbohydrates, proteins and amino acids, peptide bond, protein structure, enzymes, vitamins, nucleic acids, hormones.
A checklist to tick off:
- Carbohydrates
- Proteins and amino acids
- Peptide bond
- Protein structure
- Enzymes
- Vitamins
- Nucleic acids
- Hormones
What to focus on
Structures and classification of carbohydrates, amino acids and proteins, vitamins and their sources, and nucleic-acid basics. It is an NCERT-recall chapter.
A study plan for this chapter
Treat it as a dependable source of marks and keep it in your regular revision cycle. If you divide your Chemistry time in proportion to recent weightage, this chapter earns about 4% of it.
- Day 1–2: a fast pass over theory and the standard results.
- Day 3: chapter-wise PYQs, then log the mistakes.
- Ongoing: a quick look before each mock test.
Keep reading
- The full ranking: JEE Main Chemistry chapter-wise weightage
- Next chapter by weight: Purification and Characterisation of Organic Compounds
- A heavier neighbour: Classification of Elements and Periodicity
See Biomolecules on the weightage page →
Frequently Asked Questions
How many questions has Biomolecules had in JEE Main?
108 questions across 2022–2026, counting every shift: 2022: 30, 2023: 22, 2024: 16, 2025: 18, 2026: 22.
Is Biomolecules important for JEE Main Chemistry?
It ranks #17 of 20 Chemistry chapters by recent weight, which puts it in tier 3 of 3 for preparation. Its momentum is labelled Stable.
How should I start Biomolecules?
Structures and classification of carbohydrates, amino acids and proteins, vitamins and their sources, and nucleic-acid basics. Then solve chapter-wise previous-year questions.