Photosynthesis in Higher Plants is a Class 11 Biology chapter that carries about 2.7% of the Biology questions in NEET. Practise it with 52 questions covering 5 topics, each with an explanation.
Sets of 15 questions that adapt to your level, with an explanation for every answer.
Across the 13 previous year papers, Photosynthesis in Higher Plants had 26 questions, about 2.0 a year. The most in one paper was 3, in NEET 2016.
| Paper | Questions from this chapter |
|---|---|
| NEET 2026 | 3 |
| NEET 2025 | 2 |
| NEET 2024 | 3 |
| NEET 2023 | 3 |
| NEET 2022 | 3 |
| NEET 2021 | 2 |
| NEET 2020 | 2 |
| NEET 2019 | 0 |
| NEET 2018 | 2 |
| NEET 2017 | 2 |
| NEET 2016 | 3 |
| Re-AIPMT 2015 | 1 |
| AIPMT 2014 | 0 |
8 questions from the practice bank, spread across the chapter's topics. The full set is in the app.
Photorespiration occurs when RuBisCO:
Answer: B. binds to oxygen instead of carbon dioxide
Why: It wastes energy without producing sugars, and is minimal in C₄ plants.
The first CO₂ acceptor in the Calvin cycle is:
Answer: B. ribulose 1,5-bisphosphate (RuBP)
Why: The enzyme is RuBisCO.
The primary CO2 acceptor in C3 plants during the Calvin cycle is:
Answer: B. ribulose-1,5-bisphosphate (RuBP)
Why: In C3 photosynthesis, RuBisCO fixes CO2 onto the 5-carbon RuBP, forming an unstable 6-carbon intermediate that splits into two molecules of 3-phosphoglycerate.
Photolysis of water in the light reactions of photosynthesis primarily provides:
Answer: B. electrons to replace those lost from photosystem II, along with oxygen
Why: Splitting of water at photosystem II supplies electrons to replenish those ejected on light absorption, and releases oxygen as a by-product.
T.W. Engelmann, using the aerobic bacteria and a prism, showed that:
Answer: A. the bacteria accumulated in the blue and red regions of the spectrum of light, where the algae photosynthesised the most
Why: It gave the first action spectrum of photosynthesis.
C4 plants are generally more efficient than C3 plants in hot, dry climates chiefly because C4 plants:
Answer: B. minimise photorespiration by concentrating CO2 around RuBisCO in bundle sheath cells
Why: The C4 pathway first fixes CO2 as a 4-carbon acid in mesophyll cells and releases it in bundle sheath cells, raising local CO2 concentration around RuBisCO and suppressing the wasteful oxygenase reaction that causes photorespiration.
For the synthesis of one molecule of glucose, the Calvin cycle needs to turn:
Answer: B. six times, using 18 ATP and 12 NADPH
Why: For each CO₂ molecule fixed, 3 ATP and 2 NADPH are used.
Cyclic photophosphorylation produces:
Answer: B. only ATP
Why: Electrons from photosystem I return to it through the electron transport chain, so no water is split and no NADPH is formed.
Photosynthesis in Higher Plants carries about 2.7% of the Biology questions in NEET. Across the 13 previous year papers on NeetVictory it appeared 26 times, about 2.0 questions a year.
Photosynthesis in Higher Plants is a Class 11 Biology chapter in the NCERT syllabus.
NeetVictory has 52 practice questions on Photosynthesis in Higher Plants, each with an explanation, in sets of 15 that adapt to your level. This page shows a free sample.
NeetVictory