MGR University B-Pharmacy Third Year 564261 PAPER I – PHARMACOGNOSY AND PHYTOCHEMISTRY August 2018 Question Paper

564261 PAPER I – PHARMACOGNOSY AND PHYTOCHEMISTRY

THE TAMIL NADU DR. M.G.R. MEDICAL UNIVERSITY (LN 4261) AUGUST 2018 Sub. Code: 4261
B.PHARM. DEGREE EXAMINATION
THIRD YEAR
PAPER I – PHARMACOGNOSY AND PHYTOCHEMISTRY
Q.P. Code: 564261
Time: Three hours Maximum: 100 Marks
I. Elaborate on: (2 x 20 = 40)1. a) How crude drugs are classified? Explain Pharmacological and chemical
classifications with examples.
b) Discuss the different methods of cultivation used for propagating medicinal
plants.
2. a) Write the source, macroscopic characters, identification tests and clinical uses
of a drug containing anthraquinone glycosides.
b) What is manipulated Opium? Describe the collection of opium in India. Write
its constituents and uses.
II. Write notes on: (8 x 5 = 40)1. Write note on Nuxvomica.
2. Describe the life cycle of ergot. Give an account of its active constituents and
therapeutics uses.
3. How medicinal castor oil is prepared from its source? How will you identify its
purity?
4. Explain the: (i) Murexide test (ii) Vitalis test.
5. Scope of Pharmacognosy.
6. Difference between Fennel and coriander.
7. Crude drug from mineral origin.
8. Fibres used in Pharmacy.
III. Short answers on: (10 x 2 = 20)1. How is the pungency of Ginger destroyed?
2. Why cascara bark is to be stored for at least one year before use?
3. Source and uses of Margosa oil.
4. What is clove stalk?
5. Why the shark liver oil is not genuine substituent for cod liver oil?
6. Write the constituents and uses of Devils dung.
7. Trichomes and its type.
8. Define Aleurone grains.
9. Write any two difference between Cinnamomum zeylanicum and Cinnamomum
cassia.
10. Give the examples for Resins and its uses.
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