Biomolecules in NSEC: previous year question analysis
Biomolecules has appeared 87 times in NSEC between 2007 and 2025, making it the 3rd most-asked of 29 chapters and about 6.5% of the bank. Over the last 5 years it has averaged 1.8 questions per year.
Total PYQs
87
Years covered
2007–2025
Weightage rank
#3 of 29
Share of bank
6.5%
How many Biomolecules questions appeared each year
| Year | Questions | Relative volume |
|---|---|---|
| 2011 | 8 | |
| 2012 | 8 | |
| 2013 | 12 | |
| 2014 | 5 | |
| 2016 | 2 | |
| 2017 | 2 | |
| 2018 | 1 | |
| 2021 | 1 | |
| 2022 | 1 | |
| 2023 | 1 | |
| 2024 | 3 | |
| 2025 | 3 |
Which Biomolecules sub-topics are asked most
Every question in this chapter is tagged to a sub-topic, so you can see exactly where the marks sit before you revise.
- Cell membrane composition3 questions
- Isoelectric point of amino acids3 questions
- Terpenoids / isoprene rule1 questions
- Disulfide bond / cysteine1 questions
- Haemoglobin / oxygen transport1 questions
- DNA replication1 questions
- Carbohydrate hydrolysis1 questions
- Translation / mRNA1 questions
- Nucleic acids / codon1 questions
- Protein hydrolysis1 questions
Question formats used in Biomolecules
- Single-correct MCQ84
- Multiple-correct MCQ3
How Biomolecules compares with nearby chapters
Counts are computed from AcadXL’s own NSEC question bank, tagged chapter- and sub-topic-wise and checked against official answer keys. Sign in to attempt the 87 Biomolecules questions with solutions.