2026 source guide · Biology

NEET 2026 Biology Respiration in Plants Questions

Connect the official 2026 paper with current Biology practice without labelling original previews as PYQs.

Practice 150 verified questions →Check official NTA archive ↗

150 original questions · explicit provenance labels

BiologyPlate 19

NeetVellum atlas · fig. biology

What to master

glycolysis, fermentation, aerobic respiration, respiratory balance and amphibolic pathways.

Original practice preview

These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.

Example 1 · difficulty 3/5

Which statement about the requirement of oxygen during glycolysis is correct?

A. Molecular oxygen is consumed in the first phosphorylation step
B. Glycolysis occurs only when oxygen is continuously supplied
C. Glycolysis does not directly use molecular oxygen and can occur under both aerobic and anaerobic conditions
D. Oxygen is released when glucose is split into triose phosphates

Example 2 · difficulty 2/5

Which statement correctly relates the major fates of pyruvate to cellular conditions?

A. Pyruvate always enters mitochondria and is converted directly into citrate.
B. Pyruvate forms lactate in yeast and ethanol in oxygen-rich muscle cells.
C. Pyruvate is completely oxidised to carbon dioxide during glycolysis itself.
D. Pyruvate may form ethanol and carbon dioxide, lactate, or acetyl-CoA depending on the cell type and oxygen availability.

Example 3 · difficulty 1/5

What are the principal end products when pyruvate undergoes alcoholic fermentation in yeast?

A. Ethanol and carbon dioxide
B. Lactate and carbon dioxide
C. Acetyl-CoA and water
D. Ethanol and oxygen

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

Respiration in Plants →

Frequently asked questions

Are these official NEET 2026 Biology Respiration in Plants 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 2026 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.