OU M.Pharm Question Papers Last 10 Years 2010-2020 || Osmania University
FACULTY OF PHARMACY
M. Pharmacy (Pharmacognosy) I-Semester (PCI) (Suppl.) Examination, August 2018
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Subject: Phytochemistry
Time: 3 Hrs Max. Marks: 75
Note: Answer any five questions. All questions carry equal marks.
- Write the definition and principles of extraction and types of extracts. Describe various extraction techniques with principles, merits and demerits. 15
- Explain the instrumental technique and applications of
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(i) Super critical Fluid extraction technique.
(ii) HPTLC 7+7 - (a) Describe the concept of tracer technique and discuss the methods of detectors used in tracer technique.
(b) Write the chemistry of Glycyrrhizin. 10+5 - (a) Discuss the importance of natural products in discovery of drugs.
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(b) Explain the selection of lead structure and optimization. 7+7 - Give the source, spectral characters and structural elucidation of Caffeine. 15
- Write about
(i) Biosynthesis of sennosides.
(ii) Phases of clinical studies--- Content provided by FirstRanker.com ---
(iii) Chemistry of artemesin. 5+5+5 - Give the source, Chemical structure and isolation of
(i) Piperine (ii) Quinine (iii) Caffeine 5+5+5 - Write the sources, chemistry and mechanism of action of
(i) Digitoxin (ii) Vinca alkaloids (iii) Taxol 5+5+5
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