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Botany - Respiration in Plants

Practise 24 AIIMS previous year questions on Respiration in 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.

Respiration in Plants has been asked in 13 of the 19 years of AIIMS papers analysed (2001–2019), with 24 questions in all. 46% of them were easy, 38% moderate and 17% tough. Most of its questions came from 2019, with 5 questions that year. In the last three years (2017–2019) it had 10 questions across 5 papers, about 2 per paper.

The chapter's 6 topics are not weighted equally: Aerobic Respiration (8 questions, 33%), Glycolysis (7 questions, 29%), and Respiratory Quotient (4 questions, 17%) have been asked the most. Respiratory Quotient has produced the most tough questions (3).

  1. 1Assertion : Respiratory pathway is considered as an amphibolic pathway. Reason : Respiratory pathway involves both anabolism and catabolism.26 May, 2019Respiratory Quotient
  2. 2Mitochondria are absent in mature mammalian RBCs. What is the source of energy for these cells then?25 May, 2019Glycolysis
  3. 3ATP formation occurs through which of the following processes?25 May, 2019Aerobic Respiration
  4. 4Mercury is generally used in anaerobic respiration experiments because it does not react with25 May, 2019Glycolysis
  5. 5Assertion : Respiration involving proteins as respiratory substrate is called floating respiration. Reason : Respiration involving carbohydr25 May, 2019Respiratory Quotient
  6. 6Assertion : Respiratory pathway is an amphibolic pathway. Reason : In respiration, there is breakdown of many substances (catabolism) and sy27 May, 2018Amphibolic Pathway
  7. 7Out of 38 molecules of ATP produced by aerobic respiration of glucose, the break up of ATP production in glycolysis (P), pyruvate to acetyl-26 May, 2018Aerobic Respiration
  8. 8Assertion : Fermentation is incomplete oxidation of glucose. Reason: In fermentation, glucose may be converted to and ethanol.26 May, 2018Fermentation
  9. 9Assertion: Glucose is the favoured respiratory substrate. Reason : When glucose is used as respiratory substrate it is completely oxidised a2017Respiratory Quotient
  10. 10Assertion : Conversion of 1,3 biphosphoglycerate (BPGA) to 3-phospho-glyceric acid (PGA) is an energy yielding step. Reason : This energy is2017Cellular Respiration
  11. 11Which enzyme helps in transfer of phosphate group from ATP to a carbohydrate?2015Aerobic Respiration
  12. 12Assertion : Glucose is the favoured respiratory substrate. Reason: When glucose is used as respiratory substrate and is completely oxidized,2014Respiratory Quotient
  13. 13In aerobic respiration, total number of ATP molecules formed from 1 glucose molecule is2012Aerobic Respiration
  14. 14After glycolysis, fate of glucose in mitochondrial matrix is2011Glycolysis
  15. 15The enzyme decarboxylase catalyses the following step2009Aerobic Respiration
  16. 16Which of the following is true regarding the given electron transport chain?2009Aerobic Respiration
  17. 17Assertion : Glycolysis is the first step of respiration in which glucose completely breaks into and . Reason : In this process, there is net2009Glycolysis
  18. 18A patient of diabetes mellitus excretes glucose in urine even when he is kept in a carbohydrate free diet. It is because2008Cellular Respiration
  19. 19Cut surfaces of fruit and vegetables often become dark because2008Aerobic Respiration
  20. 20Which of the following is the connecting link between glycolysis and Krebs cycle?2007Glycolysis
  21. 21Photorespiration in plants starts from:2003Aerobic Respiration
  22. 22Glycolysis is found in cytoplasm of virtually all types of aerobic/anaerobic cells. In this process, glucose is converted into2002Glycolysis
  23. 23Photorespiration, usually occurs in2001Cellular Respiration
  24. 24In respiration from of glucose which of the following is formed?2001Glycolysis

Frequently Asked Questions

1.How many questions are available for Respiration in Plants?

This chapter includes 24 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 Respiration in Plants chapter. Questions from other exams like NEET or JIPMER are organised separately under their respective exam sections.

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

Respiration in Plants has appeared in 13 of the 19 years of AIIMS papers covered here, with 24 questions across 15 papers - about 2 per paper it appears in.

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

Of the 24 questions analysed for this chapter, 46% are easy, 38% moderate and 17% tough. 2019 had the most, with 5 questions.

5.Which topics in Respiration in Plants should I focus on?

These topics have carried the most weightage in Respiration in Plants:

  • Aerobic Respiration - 8 questions (33%)
  • Glycolysis - 7 questions (29%)
  • Respiratory Quotient - 4 questions (17%)
  • Respiratory Quotient has produced the most tough questions (3).
6.Is Respiration in Plants's weightage in AIIMS going up or down?

Across all 15 papers analysed, Respiration in Plants has averaged about 1.6 questions per paper. In the last three years (2017–2019), that average has risen, at about 2.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.