Questions
38
across 8 papers
Share of subject
9.8%
of 388 Zoology Qs
Weightage rank
#3
of 16 chapters
Difficulty
14 easy · 17 medium · 7 hard
Biomolecules contributed 38 of the 388 NEET Zoology questions between 2020 and 2026 (Re-NEET 2026 included). That is 9.8% of the subject and makes it the #3 chapter out of 16 by weightage — roughly 4.8 questions per paper, peaking at 6 in NEET 2020.
Of the 38 questions tagged for difficulty, 37% were easy, 45% medium and 18% hard — a fairly balanced mix of easy and moderate questions.
It has been asked less often lately: 3.7 questions per paper across NEET 2025, NEET 2026 and Re-NEET 2026, against 5.7 in 2020–2022.
The single most-tested topic is Primary and Secondary Metabolites (Examples and Function) — 5 questions across 4 papers.
23 topics tagged under Biomolecules. Numbers show how many questions each topic had in each paper; E / M / H are the easy, medium and hard counts.
| Topic | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Re | Total | E | M | H |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary and Secondary Metabolites (Examples and Function) | 1 | 2 | – | – | – | – | 1 | 1 | 5 | 2 | 1 | 2 |
| Enzymes (Classification and Nomenclature of Enzymes) | 1 | – | – | – | 1 | 1 | 1 | – | 4 | 2 | 2 | – |
| Proteins (Structure of Proteins) | – | 1 | – | 1 | – | – | 1 | – | 3 | 1 | 1 | 1 |
| Enzymes (Cofactor) | – | – | – | – | – | 2 | – | – | 2 | 2 | – | – |
| Enzymes (Mechanism of Enzyme Action) | – | – | – | 1 | 1 | – | – | – | 2 | – | 1 | 1 |
| Lipids (Phospholipid, Triglycerides, etc.) | – | – | 1 | – | 1 | – | – | – | 2 | 1 | 1 | – |
| Nature of Bond Linking Monomers in Polymer (Glycosidic, Phosphodiester, etc.) | 1 | 1 | – | – | – | – | – | – | 2 | 1 | 1 | – |
| Nucleic Acids (DNA) | 1 | – | 1 | – | – | – | – | – | 2 | 1 | 1 | – |
| Proteins (Function of Protein) | 1 | – | – | – | 1 | – | – | – | 2 | 1 | 1 | – |
| Amino Acids (Different Types of Amino Acid) | 1 | – | – | – | – | – | – | – | 1 | 1 | – | – |
| Analysis of Chemical Composition (DNA) | – | – | – | – | – | 1 | – | – | 1 | – | 1 | – |
| Analysis of Chemical Composition (Elemental Analysis) | – | – | – | – | – | – | – | 1 | 1 | – | – | 1 |
| Carbohydrates (Composition of Cell Wall) | – | – | 1 | – | – | – | – | – | 1 | – | 1 | – |
| Carbohydrates (Disaccharides) | – | – | 1 | – | – | – | – | – | 1 | – | 1 | – |
| Carbohydrates (Polysaccharide) | – | – | 1 | – | – | – | – | – | 1 | – | 1 | – |
| Carbohydrates (Polysaccharides) | – | – | – | 1 | – | – | – | – | 1 | – | 1 | – |
| Enzymes (Co-factors) | – | – | – | – | 1 | – | – | – | 1 | 1 | – | – |
| Enzymes (Competitive, Non Competitive, etc.) | – | – | – | – | 1 | – | – | – | 1 | 1 | – | – |
| Enzymes (Inhibitiond of Enzyme Action) | – | – | – | 1 | – | – | – | – | 1 | – | – | 1 |
| Enzymes (Introduction) | – | – | – | – | – | – | 1 | – | 1 | – | 1 | – |
| Lipids (Glycerol and Fatty Acid) | – | 1 | – | – | – | – | – | – | 1 | – | – | 1 |
| Nature of Bond Linking Monomers in Polymer (Peptide Bond) | – | 1 | – | – | – | – | – | – | 1 | – | 1 | – |
| Proteins (Amino Acids) | – | – | – | – | – | – | 1 | – | 1 | – | 1 | – |
In the NEET papers from 2020 to 2026 (including Re-NEET 2026), 38 Zoology questions came from Biomolecules — 9.8% of the subject, or about 4.8 per paper.
By past weightage it ranks #3 of 16 Zoology chapters, so it is one of the five highest-weightage Zoology chapters, with 38 questions over 2020–2026.
The most-tested topics are Primary and Secondary Metabolites (Examples and Function) (5), Enzymes (Classification and Nomenclature of Enzymes) (4) and Proteins (Structure of Proteins) (3). The topic table above lists every topic with its count in each paper.
Of the 38 difficulty-tagged questions, 37% were easy, 45% medium and 18% hard.
Primary and Secondary Metabolites (Examples and Function), Enzymes (Classification and Nomenclature of Enzymes), Proteins (Structure of Proteins) and Analysis of Chemical Composition (Elemental Analysis) and more were asked in the 2026 papers.
Edurack has chapter-wise NEET previous-year questions for Biomolecules. Use the practice button on this page to open the set, attempt questions and check your answers.
Counts come from Edurack's tagged set of NEET papers 2020–2026 (including Re-NEET 2026), mapped to NCERT chapters and topics. Use them as a trend guide — past frequency doesn't guarantee what a future paper will ask.