2019 source guide · Biology

NEET 2019 Biology Respiration in Plants Questions

Use this page to connect the official 2019 paper with current Biology practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.

Practice 100 verified questions →Check official NTA archive ↗

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 1/5

Why must plant cells respire even though green plants manufacture food by photosynthesis?

A. Respiration supplies carbon dioxide as the only raw material for growth
B. Respiration releases usable energy from food for cellular activities
C. Respiration converts all stored food directly into oxygen
D. Respiration replaces the need for mineral absorption by roots

Example 2 · difficulty 2/5

Which feature most directly explains why plants generally do not require specialised respiratory organs?

A. Every plant cell remains permanently exposed to the atmosphere
B. Plants obtain all respiratory oxygen from water absorbed by roots
C. Each plant part largely manages its own gas-exchange needs, and the overall demand is relatively low
D. Respiration occurs only in leaves during daylight

Example 3 · difficulty 1/5

In an older woody stem, gaseous exchange with the external atmosphere occurs mainly through

A. root hairs
B. hydathodes
C. sieve tubes
D. lenticels

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 2019 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 2019 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.