Osmania University (OU) 2008-2nd Year B.Pharm .II SEMISTER(MAIN) ,IL - Question Paper

CODE NO 3015
FACULTY OF TECHNOLOGY
b pharm.II year II semester(main) examination,April 2008
PHARMACOGNOSY-I
time:3 hours max marks:70
ans all ques.
all ques. carry equal marks

1(a)(i) discuss the exogenous factors affecting cultivation of medicinal plants.give examples.[marks 8]
(ii) mention the advantages and disadvantages of cultivation of medicinal plants by seed propagation.[marks 6]
OR
(b) (i) elaborate crude drugs? write in detail on any 3 methods of classification of crude drugs with examples. [marks 8]
(ii)write briefly on hybridization.[marks 6]


2 (a) (i)discuss about the subsequent in the elucidation of bio synthetic pathways:[marks 8]
(1)sequential analysis (2) competitive feeding.
(ii) write the various pathways for the utilization of carbohydrates in plants.[marks 6]
OR
(b) (i) discuss about the shikimic pathways.[marks 8]
(ii) elaborate primary metabolites? enumerate the various metabolic pathways by which phytoconstituents are formed.[marks 6]


three (a) (i)discuss about the following:[marks 8]
(1) ash values (2) extractive values
(ii) write note on crude fibre content.[marks 6]
OR
(b) (i) elaborate factors that reason deterioration of crude drugs? elaborate the steps that to be taken to prevent deterioration?[marks 8]
(ii) elaborate pest? write about the methods of pest control.[marks 6]


4 (a) (i) elaborate starches? provide their properties. define the manufacture of maize starch and its uses.[marks 8]
(ii) write the important chemical test for carbohydrates.[marks 6]
OR
(i) write the morphology and uses of[marks 8]
(1) tragacanth (2) theobroma oil.
(ii) write a note on catechu.[marks 6]


5 (a) (i) mention the botanical source,chemical constituents and uses of[marks 8]
(1) shark liver oil (2) musk
(ii) write the botanical source,morphology,microscopical characters, test for purity and uses of honey[marks 6]
OR
(a) (i) mention the physical characters and applications of the subsequent drugs {marks 8]
(1) cod liver oil (2) bentonite
(ii) write the method of production,morphology and microscopical features of rayon.[marks 6]

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Earning:   Approval pending.