Download OU M.Pharma Pharmacognosy 1st Sem 2019 13158 PCI Phytochemistry Question Paper

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Code No. 13158 / PCI

FACULTY OF PHARMACY

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M. Pharmacy (Pharmacognosy) I – Semester (PCI) (Main & Backlog) Examination, February 2019

Subject: Phytochemistry

Time: 3 Hrs Max.Marks: 75

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

1. 1. Explain the concept of Bioguided extraction technique.

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   2. Describe the Super critical extraction technique with advantage and disadvantages.
   3. Explain the spectral characters of Menthol. 5+5+5
2. 1. Write the applications of HPTLC, LCMS and GCMS.
   2. Discuss the chemistry of Artemesin. 10+5

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3. Give the sources, structures and isolation of Sennosides and piperine. 15
4. 1. Discuss the role of herbs as a source of drugs in drug discovery process.
   2. Explain the selection and optimization of lead compounds. 7+8

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5. 1. Define the extraction and types of extracts.
   2. Write the principle of extraction and discuss the methods of various extraction Techniques. 5+10
6. 1. List the basic metabolic pathways and explain the shikmic acid pathway.
   2. Define and classify the steroids. 10+5

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7. Give an informative note on
   1. Phases of clinical trials.
   2. HPTLC 8+7
8. Describe the structural features and spectral characters of Nicotine, Citral and luteolin. 15

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