Photosynthesis PYQ NEET : Practice NEET Previous Year Questions with Solutions

Updated 3+ months ago

Photosynthesis in Higher Plants is one of the most important chapters in NEET Botany, with 3–4 questions asked every year. Most of the Photosynthesis NEET PYQs are repeatedly framed from topics like the Light Reaction, Calvin Cycle, C3 and C4 pathways, photorespiration, and factors affecting photosynthesis.

This article covers NEET Previous Year Questions (PYQs) on Photosynthesis from the last 10 years with detailed solutions. Practice of these Photosynthesis PYQs, will help the students to understand question trends, improves accuracy, and strengthens concepts for NEET 2026.

NEET PYQs for Photosynthesis

1.
How many ATP and NADPH₂ are required for the synthesis of one molecule of Glucose during Calvin cycle?
- 18 ATP and 12 NADPH₂
- 12 ATP and 16 NADPH₂
- 18 ATP and 16 NADPH₂
- 12 ATP and 12 NADPH₂
View Solution
2.
Which of the following statements is incorrect
- Cyclic photophosphorylation involves both PS I and PS II.
- Both ATP and NADPH+H⁺ are synthesized during non-cyclic photophosphorylation
- Stroma lamellae have PS I only and lack NADP reductase
- Grana lamellae have both PS I and PS II
View Solution
3.
Which of the following is not a product of light reaction of photosynthesis ?
- ATP
- NADPH
- NADH
- Oxygen
View Solution
4.
Oxygen is not produced during photosynthesis by
- Chara
- Green sulphur bacteria
- Cycas
- Nostoc
View Solution
5.
Oxygen is not produced during photosynthesis by
- Green sulphur bacteria
- Cycas
- Nostoc
- Chara
View Solution
6.
Chromatophores take part in
- movement
- respiration
- photosynthesis
- growth.
View Solution
7.
What is the role of large bundle sheath cells found around the vascular bundles in $C_4$ plants?
- To provide the site of photorespiratory pathway
- To increase the number of chloroplast for the operation of Calvin cycle
- To enable the plant to tolerate high temperature
- To protect the vascular tissue from high light intensity
View Solution
8.
Which one of the following products diffuses out of the chloroplast during photosynthesis?
- ADP
- NADPH
- $O_2$
- ATP
View Solution
9.
With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct ?
- Increasing atmospheric $CO_2$ concentration up to $0.05\%$ can enhance $CO_2$ fixation rate
- $C_3$ plants respond to higher temperatures with enhanced photosynthesis while $C_4$ plants have much lower temperature optimum
- Tomato is a greenhouse crop which can be grown in $CO_2 -$ enriched atmosphere for higher yield
- Light saturation for $CO_2$fixation occurs at $10\%$ of full sunlight
View Solution
10.
Emerson's enhancement effect and Red drop have been instrumental in the discovery of
- Two photosystems operating simultaneously
- Photophosphorylation and cyclic electron transport
- Oxidative phosphorylation
- Photophosphorylation and non-cyclic electron transport
View Solution
11.
In photosynthesis, the light independent reactions take place at
- photosystem II
- stromal matrix
- thylakoid lumen
- photosystem I.
View Solution
12.
Anoxygenic photosynthesis is characteristic of:
- Spirogyra
- Chlamydomonas
- Ulva
- Rhodospirillum
View Solution
13.
Which of the following statements is incorrect
- Oxidation-reduction reactions produce proton gradient in respiration
- During aerobic respiration, role of oxygen is limited to the terminal stage
- In ETC (Electron Transport Chain), one molecule of NADH+H⁺ gives rise to 2 ATP molecules, and one FADH₂ gives rise to 3 ATP molecules
- ATP is synthesized through complex V
View Solution
14.
The reaction centre PS II has an absorption maxima at
- 700 nm
- 660 nm
- 780 nm
- 680 nm
View Solution
15.
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:
- Breakdown of proton gradient
- Breakdown of electron gradient
- Movement of protons across the membrane to the stroma
- Reduction of NADP to NADPH₂ on the stroma side of the membrane
View Solution

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NEET PYQs for Photosynthesis

1.How many ATP and NADPH2 are required for the synthesis of one molecule of Glucose during Calvin cycle?

2.Which of the following statements is incorrect

3.Which of the following is not a product of light reaction of photosynthesis ?

4.Oxygen is not produced during photosynthesis by

5.Oxygen is not produced during photosynthesis by

6.Chromatophores take part in

7.What is the role of large bundle sheath cells found around the vascular bundles in \(C_4\) plants?

8.Which one of the following products diffuses out of the chloroplast during photosynthesis?

9.With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct ?

10.Emerson's enhancement effect and Red drop have been instrumental in the discovery of

11.In photosynthesis, the light independent reactions take place at

12.Anoxygenic photosynthesis is characteristic of:

13.Which of the following statements is incorrect

14.The reaction centre PS II has an absorption maxima at

15.Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:

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1.
How many ATP and NADPH₂ are required for the synthesis of one molecule of Glucose during Calvin cycle?

2.
Which of the following statements is incorrect

3.
Which of the following is not a product of light reaction of photosynthesis ?

4.
Oxygen is not produced during photosynthesis by

5.
Oxygen is not produced during photosynthesis by

6.
Chromatophores take part in

7.
What is the role of large bundle sheath cells found around the vascular bundles in \(C_4\) plants?

8.
Which one of the following products diffuses out of the chloroplast during photosynthesis?

9.
With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct ?

10.
Emerson's enhancement effect and Red drop have been instrumental in the discovery of

11.
In photosynthesis, the light independent reactions take place at

12.
Anoxygenic photosynthesis is characteristic of:

13.
Which of the following statements is incorrect

14.
The reaction centre PS II has an absorption maxima at

15.
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves: