Photosynthesis in Higher Plants NEET Previously Asked Questions Series
1. Which of the following is not a product of the light reaction of photosynthesis? (NEET-2018)
(1) ATP
(2) NADH
(3) NADPH
(4) Oxygen
Answer: 2
2. Oxygen is not produced during photosynthesis by (NEET-2018)
(1) Green sulfur bacteria
(2) Nostoc
(3) Cycas
(4) Chara
Answer: 1
3. With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct? (NEET-2017)
(1) Increasing atmospheric CO2 concentration up to 0.05% can enhance CO2 fixation rate
(2) C3 plants respond to higher temperatures with enhanced photosynthesis while C4 plants have much lower temperature optimum
(3) Tomato is a greenhouse crop that can be grown in CO2 - an enriched atmosphere for higher yield
(4) Light saturation for CO2 fixation occurs at 10% of full sunlight
Answer: 2
4. Phosphoenolpyruvate (PEP) is the primary CO2 acceptor in (NEET-2017)
(1) C4 plants
(2) C2 plants
(3) C3 and C4 plants
(4) C3 plants
Answer: 1
5. Emerson's enhancement effect and red drop have been instrumental in the discovery of (NEET-I 2016)
(1) Photophosphorylation and non-cyclic electron transport
(2) Two photosystems operating simultaneously
(3) Photophosphorylation and cyclic electron transport
(4) Oxidative phosphorylation
Answer: 2
6. In a chloroplast the highest number of protons are found in : (NEET-I 2016)
(1) Stroma
(2) Lumen of thylakoids
(3) Inter membrane space
(4) Antennae complex
Answer: 2
7. A plant in your garden avoids photorespiratory losses, has improved water use efficiency shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following physiological groups would you assign this plant?
(1) C3
(2) C4
(3) CAM
(4) Nitrogen fixer
Answer: 2
8. The process which makes a major difference between C3 and C4 plants is : (NEET-II 2016)
(1) Photorespiration
(2) Respiration
(3) Glycolysis
(4) Calvin cycle
Answer: 1