Your cart is empty.
Practice Structure and Function of Biomolecules - Life Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
Every graph below is calculated only from this selection.
Compare question counts across years.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
Top subjects by unique question coverage.
Top topics across the included previous year papers.
Top subtopics inside this exact selection.
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Open a focused page built from the same verified paper data.
Newest papers appear first. Search these papers or sort by year and name.
| Paper name | Year | Attempt | |
|---|---|---|---|
Life Sciences (XL) 20262026 | 2026 |
|
|
Life Sciences (XL) 20242024 | 2024 | |
|
Life Sciences (XL) 20232023 | 2023 | |
|
Life Sciences (XL) 20222022 | 2022 | |
|
Life Sciences (XL) 20202020 | 2020 | |
|
Life Sciences (XL) 20192019 | 2019 | |
|
Life Sciences (XL) 20162016 | 2016 | |
|
Life Sciences (XL) 20132013 | 2013 | |
|
Life Sciences (XL) 20122012 | 2012 | |
|
Life Sciences (XL) 20112011 | 2011 | |
|
Life Sciences (XL) 20082008 | 2008 | |
|
Life Sciences (XL) 20072007 | 2007 | |
|
A varied preview from the papers represented in this selection, with every available option.
Collagen, α-keratin and tropomyosin have common structural features. They are P) disulfide bridges to neighboring proteins. Q) repeating sequences of amino acids R) a high β-sheet content S) superhelical coiling
Cellulose serves as a structural polymer whereas starch does not. This is because cellulose contains