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Download OU B.Sc Life Sciences 6th Sem Plant Physiology Important Questions

Download OU (Osmania University) B.Sc Life Sciences 6th Sem Plant Physiology Important Question Bank For 2021 Exam

This post was last modified on 23 January 2021

OU B.Sc Life Sciences 2021 Important Question Bank || Osmania University (Important Questions)


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Subject Title: Plant Physiology Prepared by: Noori Sultana

Year: Semester: VI Updated on: 23-3-

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Unit - I: Essay type questions

  1. Structure, importance & properties of water in relation to plant life
  2. An account of Active & Passive absorption mechanisms involved in water absorption
  3. What is Ascent of Sap? Discuss various theories explaining its mechanism
  4. Vital theories & Root pressure theory in relation to transport of water in plants
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  6. What is Transpiration? Describe the mechanism of closing & opening of stomata
  7. Factors controlling stomatal movements
  8. Criteria for essentiality of elements. Give physiological role of Magnesium, Sulphur, Potassium & Iron
  9. What are Macronutrients? Describe their role in plants
  10. Mass flow theory proposed by Munch(Translocation of solutes)
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  12. What are enzymes? Give an account of their structure, properties, nomenclature & classification.

Short questions

  1. Water potential
  2. Osmosis
  3. Plasmolysis
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  5. Apoplast & Symplast
  6. Field capacity
  7. Transpirational pull
  8. Evidences in support of Cohesion Tension Theory
  9. K+ lon influx mechanism (Levitt theory)
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  11. Significance of Transpiration
  12. Antitranspirants
  13. Trace elements
  14. Hydroponics
  15. Carrier concept
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  17. Source-sink relationship
  18. Competitive & non competitive inhibition
  19. Regulation of enzyme activity
  20. Michales constant
  21. Properties of enzymes
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  23. Lock & key theory

Unit II - Essay type questions

  1. Calvin cycle/C3 cycle
  2. C4 cycle/ Hatch & Slack Pathway
  3. Biological Nitrogen fixation
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  5. Nitrogen cycle
  6. Proteinsynthesis

Short questions

  1. Photosystems | & Il
  2. Photosynthetic pigments
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  4. Absorption & action spectrum
  5. Emerson Enhancement Effect
  6. Differences between C3 & €4 Plants
  7. CAM
  8. Cyclic photophosphorylation
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  10. Red drop
  11. Z Scheme/ Non cyclic photophosphorylation
  12. Symbiotic Nitrogen fixation
  13. Physiology of Nodule formation
  14. Mechanism of Nitrogen Fixation
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  1. Amino acids
  2. t RNA
  3. Genetic code
  4. Transcription
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  6. Translation
  7. Reductive amination
  8. Transamination
  9. Nitrogenase

Unit Ill- Essay type questions

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  1. Glycolysis/ EMP Pathway
  2. Kreb’s cycle/ TCA Cycle/ Citric acid cycle
  3. What are Phytohormones? Describe in detail about Auxins & Gibberllins
  4. Essay on Cytokinins
  5. Abssiccic acid- ABA (Growth inhibitor)
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  7. Brassinosteroids
  8. Photoperiodism

Short questions

  1. Fermentation
  2. Oxidative Phosphorylation
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  4. ATPase complex
  5. Respiratory quotient
  6. Mitochondria
  7. Balance sheet/ net gain of ATP in Aerobic respiration
  8. Chemiosmotic hypothesis
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  10. Avena curvature test
  11. Applications of Auxins in Horticulture
  12. Uses of Gibberllins
  13. Ethylene
  14. Role of Phytochrome n flowering
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  16. Vernalization
  17. Modern view about Phtochrome
  18. Types of Stress resistance
  19. Salt & Freezing stress

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