Download OU M.Pharma Pharmacognosy 1st Sem 2020 6125PCI Phytochemistry Question Paper

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Code No: 6125/PClI

FACULTY OF PHARMACY

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M. Pharmacy (Pharmacognosy) I-Semester (PCI) (Main & Backlog) Examination, January 2020

Subject: Phytochemistry

Time: 3 hrs Max. Marks: 75

Note: Answer any five Questions. All Questions carry equal marks.

1. 1. Explain the concept of Radio tracing technique and methods to detect the radioactive tracers in biosynthetic studies.

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   2. Give the isolation and structural features of quinine. 10+5
2. 1. Describe the methods of drug discovery and explain the lead optimization.
   2. Write a note on artemesin. 10+5

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3. Give an informative note on 5+5+5
   1. Andrographolides
   2. Withanolides
   3. Guggulsterone
4. Describe the types of extracts and discuss the principles and methods of extractive technique. 15

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5. 1. Discuss the phases of clinical trials. 8+7
   2. Explain the principles, instrument and application of flash chromatography.
6. Describe the structural features and elucidate the structures using spectroscopic characters for 7+8
   1. Menthol
   2. Nicotine

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7. Discuss the principle, techniques and application of HPTLC technique. 15
8. Give the source, structural features and Biosynthesis of Digitoxin. 15

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