2025 source guide · Biology

NEET 2025 Biology Photosynthesis Questions

Use this page to connect the official 2025 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

pigments, light reactions, carbon fixation, photorespiration and limiting factors.

Original practice preview

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

Example 1 · difficulty 1/5

In which regions of visible light does chlorophyll a show major absorption peaks relevant to photosynthesis?

A. Blue and red regions
B. Green and yellow regions
C. Yellow and far-green regions only
D. The entire visible spectrum equally

Example 2 · difficulty 1/5

Which pigment-description pairing is correct for higher plants?

A. Chlorophyll a — yellow-orange accessory pigment
B. Chlorophyll b — yellow-green accessory pigment
C. Xanthophyll — blue-green reaction-centre pigment
D. Carotene — green pigment that absorbs only red light

Example 3 · difficulty 2/5

A green leaf generally shows a lower photosynthetic response under green light than under red or blue light of comparable incident intensity. What best accounts for this pattern?

A. Green light instantly destroys all accessory pigments.
B. Carbon dioxide cannot enter stomata when green light is present.
C. A larger fraction of green light is reflected or transmitted rather than absorbed by the major leaf pigments.
D. Only green light is absorbed by water before reaching the chloroplast.

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

Photosynthesis in Higher Plants →

Frequently asked questions

Are these official NEET 2025 Biology Photosynthesis 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.