JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B. Pharmacy III Year PHARMACOGNOSY AND PHYTOCHEMISTRY-II Previous Question Paper (December-2019 - R17)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Define Biosynthesis.
Answer
Biosynthesis is the process by which living organisms produce complex chemical compounds from simpler precursors through a series of enzyme-catalyzed reactions.
Discuss about Tracer technique in Biogenetic studies.
Answer
The tracer technique involves introducing a labeled precursor (radioactive or stable isotope) into a plant system. By tracking the path of this labeled atom through metabolic intermediates, researchers can elucidate the biosynthetic pathway of a secondary metabolite.
Name the sources of Vinca and Clove.
Answer
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State the therapeutic uses of Rauwolfia.
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Name the sources of Guggul and Myrrh.
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State the therapeutic uses of Bitter Almond.
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Define Alkaloids.
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State the uses of Citral and write the chemical structure.
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Name the source and uses of Forskolin.
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Draw the structure of Sennosides.
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Part B
Explain in detail about Shikimic acid pathway.
Answer
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How do you prepare radioactive isotopes? Explain.
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Discuss in detail about Biogenetic studies in plants.
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Outline the secondary metabolism in plants.
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Mention the chemical constituents and therapeutic uses of Cardiac glycosides containing crude drugs.
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Write a note on Lignans.
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Outline the chemical constituents and commercial applications of Mentha.
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Discuss the chemistry and method of extraction of Opium.
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Outline the chemical constituents and commercial applications of Benzoin.
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Write a note on Ginger.
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Discuss the chemistry and uses of Gentian.
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Write a note on general methods of extraction and analysis of Catechu.
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Write notes on Isolation and Identification of Quinine.
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Write in detail about Podophyllotoxin.
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Write a note on Phytochemical analysis of Glycosides.
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Write a note on Artemisin.
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Write in detail about Modern methods of extraction.
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Estimation and utilization of Taxol.
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Explain the industrial production and utilization of Diosgenin.
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Estimate and utilize Caffeine. Explain.
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