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Biomolecules

NEET Previous Year Questions with Answers

Class 11Botany47 Questions2015–2026
Topics covered:
ProteinsEnzymesCarbohydratesChapter 9- BIOMOLECULES

Year-wise Weightage (2015–2026)

2026 vs 2025: → same as 2025

YearQuestions AskedMarks
2026416
2025416
2024312
2023312
2022312
Show all years (2015–2021)
2021312
202028
2019312
201828
2017312
201628
201528
Q1
NEET 2015Proteins

Which of the following is not an amino acid?

Q2
NEET 2016Proteins

The bond that stabilises the secondary structure of proteins is:

Q3
NEET 2017Proteins

Which of the following is the most abundant protein in the animal world?

Q4
NEET 2018Enzymes

The catalytic efficiency of two different enzymes can be compared by:

Q5
NEET 2019Enzymes

Choose the correct one with respect to enzymes:

Q6
NEET 2020Carbohydrates

Chitin is a:

Q7
NEET 2021Carbohydrates

Which of the following is a non-reducing sugar?

Q8
NEET 2026Chapter 9- BIOMOLECULES

Alpha-helix is found in which level of protein structure? ( NEET 2026)

Q9
NEET 2026Chapter 9- BIOMOLECULES

Identify the correct statements about biomolecules. A. Lipids are generally water soluble. B. Proteins are polypeptides. C. Polysaccharides are long chains of sugars. D. Adenine and guanine are substituted pyrimidines. E. Almost all enzymes are proteins. ( NEET 2026)

Q10
NEET 2026Chapter 9- BIOMOLECULES

Which of the following statements are correct regarding amino acids? A. They are substituted methanes. B. Serine is an aromatic amino acid. C. Valine is a neutral amino acid. D. Lysine is an acidic amino acid. ( NEET 2026)

Q11
NEET 2026Chapter 9- BIOMOLECULES

The following reaction depicts the activity of a particular class of enzymes: X-C-C-Y (Substrate) → X-Y + C=C (Products). Identify the enzymes class from the following options: ( NEET 2026)

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Biomolecules — NEET PYQ Analysis

Biomolecules is a Class 11 Botany chapter that has been consistently tested in NEET from 2015 to 2026. This page contains 47 authentic previous year questions from actual NEET exam papers — not model questions or predictions.

Understanding how NEET frames questions from this chapter is crucial for scoring well. Topics frequently tested include Proteins, Enzymes, Carbohydrates and 1 more. Check the NEET Biology chapter-wise weightage analysis to see how this chapter ranks based on 940 PYQ analysis. For comprehensive practice with detailed NCERT-based explanations, download the MedicNEET app which covers 10,000+ questions across the full Biology syllabus.

Study Biomolecules Concept-by-Concept

Every NCERT paragraph from Biomolecules that NEET has tested. Each is its own concept page with the question, answer and exam-pattern analysis. Ranked by how many times NEET has tested the paragraph.

View all 25 concepts from Biomolecules
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See how NTA thinks about Biomolecules

We've analysed every PYQ from this chapter across 10 years of NEET — which concepts repeat, which NCERT lines NTA keeps coming back to, and what the pattern tells you about what's coming next in NEET 2027.

Read the Full PYQ Analysis →

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Every question in MedicNEET is built from the same NCERT lines NTA has repeatedly picked across 10 years of NEET Biology. Not random MCQs. Questions crafted exactly like NTA crafts them.

1,030 PYQs analysed (2015–2026)10,000+ questions built on the same patterns88 of 90 NEET 2026 questions traced to MedicNEET

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