JNTU
JNTU B.Pharmacy II PHARMACOGNOSY AND PHYTOCHEMISTRY-I Previous Question Paper (September/October - 2023 - R17)
Note: i) Question paper consists of Part A, Part B.
ii) Part A is compulsory, which carries 25 marks. In Part A, answer all questions.
iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Differentiate between organized and unorganized drugs
Answer
Organized drugs are direct parts of the plant (e.g., leaves, flowers, roots) containing cellular tissues, while unorganized drugs are products obtained from plants through physical processes (e.g., drying, incision, extraction) and lack distinct cellular structure (e.g., gums, resins, fixed oils).
What are various leaf constants?
Answer
Leaf constants are quantitative microscopic parameters used to identify and evaluate the quality of medicinal leaves. Key constants include:
- Stomatal number: Average number of stomata per square millimeter of epidermis.
- Stomatal index: Percentage of stomata to the total number of epidermal cells.
- Vein-islet number: Number of vein-islets per square millimeter of leaf surface.
- Vein-termination number: Number of vein-terminations per square millimeter.
- Palisade ratio: Average number of palisade cells beneath each epidermal cell.
What are different types of Plant hormones mention their specific uses?
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Define Polyploidy by taking suitable examples of medicinal plants.
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What are various types of plant tissue culture?
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Give nutritional requirements for culture media.
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Elaborate the role of Pharmacognosy in Homoeopathy system of Medicine.
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Classify different types of Glycosides.
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Write biological source and chemical constituents of Tragacanth.
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Mention three anticancer agents along with their biological source and chemical constituents which are obtained from marine sources
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Part B
Define Pharmacognosy write about their history and scope and development of Pharmacognosy.
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What are various method of Drug evaluation discuss in detail by giving special reference to physical and chemical method of evaluation.
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Discuss in detail about Hybridization by giving special reference to medicinal plants.
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What are various factors which effect the cultivation of medicinal plants?
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Write a note on various application of plant tissue culture in Pharmacognosy.
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Explain the various nutritional requirement of the growth of medicinal plants by plant tissue culture techniques.
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Write a note on role of Pharmacognosy in traditional Unani and Sidha system of medicine.
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Classify Various Flavonoids and Give their identification test.
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Write General introduction, detailed study with respect to chemistry, sources, preparation, evaluation, preservation, storage, therapeutic used and commercial utility as Pharmaceutical Aids and/or Medicines for honey and tragacanth.
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Write a detail note on novel medicinal agents from marine sources.
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