JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Pharmacy III Year PHARMACOGNOSY AND PHYTOCHEMISTRY-II Previous Question Paper (January/February - 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
What is the significance of acetate mevalonate pathway?
Answer
The acetate-mevalonate pathway is the primary biosynthetic route for the production of isoprenoids, including terpenes, sterols, and carotenoids. Its significance lies in providing the essential building blocks, isopentenyl pyrophosphate (IPP) and dimethylallyl pyrophosphate (DMAPP), which are precursors for diverse secondary metabolites with pharmaceutical and industrial importance.
What are applications of amino acid pathway?
Answer
The amino acid pathway is crucial for the biosynthesis of nitrogen-containing secondary metabolites. Its applications include: 1. Synthesis of alkaloids, which are significant pharmacological agents. 2. Production of cyanogenic glycosides and glucosinolates used in plant defense. 3. Formation of non-protein amino acids and peptides that serve as precursors for essential therapeutic compounds.
Draw chemical structure of vinblastine and vincristine.
Answer
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Write therapeutic uses of tea and fennel.
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Write about the chemical constituents of colophony.
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Write about general identification test of Glycosides.
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Write about the various uses of Menthol.
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Write about the isolation of caffeine.
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Write about the utilization of atropine.
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How diosgenin can be produced?
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Part B
Write about the Utilization of radioactive isotopes in the investigation of biogenetic studies.
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Write in detail about shikimic acid pathways.
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Write complete Pharmacognostic account of Opium.
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Write complete Pharmacognostic account of Vinca.
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Write complete Pharmacognostic account of Aloe.
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Write complete Pharmacognostic account of Ginger.
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Write about the isolation, identification and analysis of phytoconstituents of artemisin.
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Write about the isolation, identification and analysis of phytoconstituents of Curcumin.
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Write about the industrial production, estimation and utilization of sennosides.
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Write about the industrial production, estimation and utilization of Vinblastine.
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