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Photosynthesis Questions

Practice 43 Photosynthesis questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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43
Total Questions
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15
Easy
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26
Medium
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2
Hard
Practice by Exam:Biology(37)Botany(3)Chemistry(1)General Awareness(1)Science(1)

About Photosynthesis — practice questions, PYQs & concepts

Photosynthesis is a frequently-tested topic on Biology, Botany, Chemistry. ExamTest.live currently lists 43 Photosynthesis questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Photosynthesis weight in competitive exams

Across our Photosynthesis question bank, the largest sources are Biology (37), Botany (3), Chemistry (1), General Awareness (1) and Science (1). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 15 easy Photosynthesis questions are available — build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right — the explanation often surfaces a faster approach you can reuse.

All Photosynthesis Questions(1–43 of 43)

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Q1mediummcqGeneral AwarenessSSC Selection Post 2018 Higher Secondary Level2026
100% accuracy
हरे रंगरं के पौ धों द्वा रा प्रका श ऊर्जा को रा सा यनि क ऊर्जा में परि वर्ति त करने के लि ए उपयो ग की जा ने वा ली भौ ति क-रा सा यनि क प्रक्रि या को _________ के रूप में जा ना जा ता है।
Q2mediummcqBiologyNEET 20232026
How many ATP and are required for the synthesis of one molecule of Glucose during Calvin cycle?
Q3mediummcqBiologyNEET 20172026
With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?
Q4easymcqBiologyNEET 20172026
Phosphoenol pyruvate (PEP) is the primary acceptor in:
Q5easymcqBiologyNEET (UG) 20182026
Oxygen is not produced during photosynthesis by:
Q6mediummcqBiologyNEET (UG) 20182026
Which of the following is not a product of light reaction of photosynthesis?
Q7easymcqBiologyNEET 20212026
The first stable product of fixation in sorghum is:
Q8mediummcqBiologyNEET 20212026
Which of the following statements is incorrect?
Q9mediummcqBiologyNEET 20222026
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:
Q10mediummcqBiologyNEET 20222026
Given below are two statements:Statement I: The primary acceptor in C4 plants is phosphoenolpyruvate and is found in the mesophyll cells.Statement II: Mesophyll cells of C4 plants lack RuBisCo enzyme.In the light of the above statements, choose the correct answer from the options given below:
Q11easymcqBiologyNEET 20222026
What is the role of large bundle sheath cells found around the vascular bundles in C4 plants?
Q12easymcqBiologyNEET 20232026
The reaction centre in PS II has an absorption maxima at:
Q13easymcqBiologyNEET 20232026
Which micronutrient is required for splitting of water molecule during photosynthesis?
Q14easymcqBiologyNEET 20232026
Which of the following combinations is required for chemiosmosis?
Q15mediummcqBotanyNEET 2024 R1@NUM: 1072026
Which of the following are required for the dark reaction of photosynthesis?A. LightB. ChlorophyllC. D. ATPE. NADPH
Q16mediummcqBotanyNEET 2024 R1@NUM: 1242026
How many molecules of and are required for every molecule of fixed in the Calvin cycle?
Q17hardassertion/reasoningBotanyNEET 2024 R1@NUM: 1382026
Given
Q18mediummcqChemistryJEE Main2026
Synthesis of each molecule of glucose in photosynthesis involves:
Q19mediummcqScienceCompetitive Exam2026
What is the main function of chlorophyll in plants?
Q20mediummcqBiologyGeneral Studies Mock Test2026
On which of the following component of chloroplast is chlorophyll arranged?
Q21mediummcqBiologyBiology
0% accuracy
CAM helps the plants in:
Q22mediummcqBiologyBiology
In a chloroplast the highest number of protons are found in:
Q23easymcqBiologyBiology
plants are more efficient in photosynthesis than plants due to:
Q24mediummcqBiologyBiology
Assertion : photosynthetic pathway is more efficient than the pathway.Reason : Photorespiration is suppressed in plants.
Q25mediumassertion/reasoningBiologyBiology
The atmospheric concentration of at which photosynthesis just compensates for respiration is referred to as compensation point.
Q26mediummcqBiologyBiology
In the leaves of plants, malic acid formation during fixation occurs in the cells of:
Q27mediummcqBiologyBiology
The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is:
Q28easymcqBiologyBiology
plants are photosynthetically more efficient than plants because:
Q29easymcqBiologyBiology
In leaves of plants, malic acid synthesis during fixation occurs in:
Q30easymcqBiologyBiology
Electrons from excited chlorophyll molecules of Photosystem II are accepted first by:
Q31easymcqBiologyBiology
Manganese () is required in:
Q32mediummcqBiologyBiology
Oxygenic photosynthesis occurs in:
Q33easymcqBiologyBiology
Cyclic photophosphorylation results in the formation of:
Q34mediummcqBiologyBiology
The process which makes major difference between C3 and C4 plants is:
Q35mediummcqBiologyBiology
as the first fixation product was discovered in photosynthesis of:
Q36mediummcqBiologyBiology
Which one of the following is essential for photolysis of water?
Q37mediummcqBiologyBiology
A process that makes an important difference between and plants is:
Q38mediummcqBiologyBiology
Anoxygenic photosynthesis is characteristic of:
Q39easymcqBiologyBiology
The oxygen evolved during photosynthesis comes from water molecules. Which one of the following pairs of elements is involved in this reaction?
Q40easymcqBiologyBiology
In photosynthesis, the light-independent reactions take place at:
Q41mediummcqBiologyBiology
A plant avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. To which physiological group does this plant belong?
Q42hardmcqBiologyBiology
Emerson’s enhancement effect and Red drop have been instrumental in the discovery of:
Q43mediummcqBiologyBiology
Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because :

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Photosynthesis questions are commonly asked in Biology, Botany, Chemistry, General Awareness, Science. You can filter by exam using the links above.
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Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.