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Botany - Photosynthesis in Higher Plants

Practise 46 AIIMS previous year questions on Photosynthesis in Higher Plants, compiled from papers spanning 2001 to 2019. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty AIIMS tests.

Photosynthesis in Higher Plants has been asked in 19 of the 19 years of AIIMS papers analysed (2001–2019), with 46 questions in all. 43% of them were easy, 28% moderate and 28% tough. Most of its questions came from 2001, with 5 questions that year. In the last three years (2017–2019) it had 8 questions across 5 papers, about 1.6 per paper.

The chapter's 6 topics are not weighted equally: Mechanism of Photosynthesis (31 questions, 67%), The Site of Photosynthesis (5 questions, 11%), and Pigments (4 questions, 9%) have been asked the most. Mechanism of Photosynthesis has produced the most tough questions (11).

  1. 1A plant is exposed to very bright light. What is correct in this environmental condition?26 May, 2019The Site of Photosynthesis
  2. 2Assertion : is liberated in the non-cyclic photophosphorylation. Reason: Liberation of oxygen is due to photolysis of water.25 May, 2019Mechanism of Photosynthesis
  3. 3Assertion: In cycle, the first stable compound is compound. Reason : In plants Calvin cycle is absent.25 May, 2019Mechanism of Photosynthesis
  4. 4The saturation point of in plants is27 May, 2018Mechanism of Photosynthesis
  5. 5Assertion : Photorespiration is found in all plants. Reason: In plants, first fixation product is formed in bundle sheath cells.26 May, 2018Mechanism of Photosynthesis
  6. 6Assertion : Cyclic photophosphorylation synthesises ATP. Reason : ATP synthesis in cyclic photophosphorylation is associated with NADPH form26 May, 2018Mechanism of Photosynthesis
  7. 7plants have better productivity because2017Mechanism of Photosynthesis
  8. 8Assertion: Photorespiration is a wasteful process where there is no synthesis of ATP energy. Reason : RuBisCO is present in mesophyll cells 2017Mechanism of Photosynthesis
  9. 9Photosynthesis in plants is relatively less limited by atmospheric levels because2016Mechanism of Photosynthesis
  10. 10The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because2016Mechanism of Photosynthesis
  11. 11Assertion : CAM plants lack structural compartmentation of leaf as found in plants. Reason : Stomata of CAM plants are open during the day.2016Mechanism of Photosynthesis
  12. 12The first carbon dioxide fixation product of plants is2015Mechanism of Photosynthesis
  13. 13Carbon dioxide is necessary for photosynthesis. The chemical used to remove this gas most effectively from entering a control apparatus is2015Mechanism of Photosynthesis
  14. 14Assertion : In light reaction of photosynthesis, light is required for the functioning of PS I and PS II, and production of NADPH and ATP. R2015Mechanism of Photosynthesis
  15. 15Plants do not get benefit from2014The Site of Photosynthesis
  16. 16Assertion : Photorespiration interferes with the successful functioning of Calvin cycle. Reason: Photorespiration oxidises ribulose1,5 bipho2014Mechanism of Photosynthesis
  17. 17plants have better productivity because2013Mechanism of Photosynthesis
  18. 18Assertion : The efficiency of plant is more than those of plant. Reason: plants are more efficient in picking .2013Mechanism of Photosynthesis
  19. 19Photorespiration shows formation of2012Mechanism of Photosynthesis
  20. 20Which of the following is correctly labelled for the given figure?2012Mechanism of Photosynthesis
  21. 21Kranz anatomy is usually associated with2012Mechanism of Photosynthesis
  22. 22Which of the following statements is correct?2011Mechanism of Photosynthesis
  23. 23Assertion : Protons or hydrogen ions produced by photolysis of water accumulate in the lumen of thylakoids. Reason : Photolysis of water tak2011Mechanism of Photosynthesis
  24. 24Cyclic photophosphorylation involves2010The Site of Photosynthesis
  25. 25The first stable product of Calvin cycle is2010Mechanism of Photosynthesis
  26. 26Assertion : Due to pollution atmospheric concentration of is increasing which will be harmful for plants whereas productivity is going to in2010Mechanism of Photosynthesis
  27. 27Which of the following is the characteristic of PS-I?2009Two Pigment System
  28. 28Assertion : Dark reaction occurs only at night in the stroma of chloroplast. Reason : fixation occurs only during cycle.2009Mechanism of Photosynthesis
  29. 29Assertion : The higher concentration of \( {O}_2\) in the atmosphere is inhibitory to photosynthesis. Reason : \( {CO}_2\) is the main subst2008The Site of Photosynthesis
  30. 30What is PAR range?2007Pigments
  31. 31Assertion : Dark reaction is purely enzymatic reaction. Reason : It occurs only in absence of light.2007Introduction
  32. 32Assertion : Under conditions of high light intensity and limited supply, photorespiration has a useful role in protecting the plants from ph2006Mechanism of Photosynthesis
  33. 33Assertion : Photosynthetically plants are less efficient than plants. Reason : The operation of pathway requires the involvement of only bun2006Mechanism of Photosynthesis
  34. 34Assertion : photosynthetic pathway is more efficient than the pathway. Reason : Photorespiration is suppressed in plants.2005Mechanism of Photosynthesis
  35. 35Assertion : The atmospheric concentration of at which photosynthesis just compensates for respiration is referred to as compensation point R2005Factor Affecting Photosynthesis
  36. 36Which one of the following categories of organisms do not evolve oxygen during photosynthesis?2004Introduction
  37. 37Assertion : Deficiency of sulphur causes chlorosis in plants. Reason : Sulphur is a constituent of chlorophyll, proteins and nucleic acids.2004Pigments
  38. 38Hill reaction occurs in:2003Mechanism of Photosynthesis
  39. 39Assertion : Rhoeo leaves contain anthocyanin pigments in epidermal cells. Reason : Anthocyanins are accessory photosynthetic pigments.2003Pigments
  40. 40The photorespiratory carbon-oxidation cycle involves the interaction of2002Mechanism of Photosynthesis
  41. 41Assertion : When six molecules of carbon dioxide participate in photosynthesis, 12 molecules of and are used up, forming one hexose molecule2002Mechanism of Photosynthesis
  42. 42Which of the following statements about phytochrome is true?2001Pigments
  43. 43Blackman's law is related to2001Factor Affecting Photosynthesis
  44. 44Who discovered photophosphorylation?2001Mechanism of Photosynthesis
  45. 45Photosynthetic bacteria do not contain2001Two Pigment System
  46. 46Assertion : Stomata remain open during day. Reason : Stomata help in exchange of gases.2001The Site of Photosynthesis

Frequently Asked Questions

1.How many questions are available for Photosynthesis in Higher Plants?

This chapter includes 46 questions compiled from AIIMS papers spanning 2001 to 2019.

2.Are these questions only from AIIMS, or from other exams too?

These are AIIMS questions specifically for the Photosynthesis in Higher Plants chapter. Questions from other exams like NEET or JIPMER are organised separately under their respective exam sections.

3.Is Photosynthesis in Higher Plants an important chapter for AIIMS Botany?

Photosynthesis in Higher Plants has appeared in 19 of the 19 years of AIIMS papers covered here, with 46 questions across 21 papers - about 2 per paper it appears in.

4.What is the difficulty level of Photosynthesis in Higher Plants questions in AIIMS?

Of the 46 questions analysed for this chapter, 43% are easy, 28% moderate and 28% tough. 2001 had the most, with 5 questions.

5.Which topics in Photosynthesis in Higher Plants should I focus on?

These topics have carried the most weightage in Photosynthesis in Higher Plants:

  • Mechanism of Photosynthesis - 31 questions (67%)
  • The Site of Photosynthesis - 5 questions (11%)
  • Pigments - 4 questions (9%)
  • Mechanism of Photosynthesis has produced the most tough questions (11).
6.Is Photosynthesis in Higher Plants's weightage in AIIMS going up or down?

Across all 21 papers analysed, Photosynthesis in Higher Plants has averaged about 2.2 questions per paper. In the last three years (2017–2019), that average has fallen, at about 1.6 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.