Example 1 · difficulty 1/5
When two monosaccharide units join through an oxygen atom with the loss of water, what is the resulting linkage called?
- A. Peptide linkage
- B. Glycosidic linkage
- C. Phosphodiester linkage
- D. Disulfide linkage
2025 source guide · Chemistry
NEET 2025 Chemistry Biomolecules Questions
Use this page to connect the official 2025 paper with current Chemistry practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.
What to master
carbohydrates, proteins, enzymes, vitamins and nucleic acids.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 1/5
Which disaccharide occurs in milk and is therefore commonly called milk sugar?
- A. Sucrose
- B. Maltose
- C. Lactose
- D. Glycogen
Example 3 · difficulty 2/5
Which description correctly identifies the glycosidic linkage in sucrose?
- A. C1 of α-D-glucose joined through oxygen to C4 of D-glucose
- B. C1 of β-D-galactose joined through oxygen to C4 of D-glucose
- C. C1 of β-D-glucose joined through oxygen to C6 of D-fructose
- D. C1 of α-D-glucose joined through oxygen to C2 of β-D-fructose
The evidence-first practice loop
- 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
- 2. Attempt closed-bookExpose the concept or execution gap before rereading.
- 3. Repair and returnClassify the miss and re-practice after a delay.
Canonical chapter practice
Frequently asked questions
Are these official NEET 2025 Chemistry Biomolecules PYQs?
No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.
How should I use the NEET 2025 paper?
Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.