Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
B. Pharm. SEMESTER V • EXAMINATION WINTER • 2016
Subject Code: 250006 Date: 03-12-2016
Subject Name: Pharmacognosy IV
Time: 10:30 am 01:30 pm Total Marks: 80
Instructions:
1. Attempt any five questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1

Describe the general procedure of isolation of alkaloids.
06

Describe biosynthesis and uses of Atropine.
05

Prepare a brief note on drug used in glaucoma.
05
Q.2

Give biological sources, chemical constituents and uses of any two drugs containing liquid alkaloid.
06

Write on properties and uses of opium alkaloids.
05

Draw well labeled diagram showing morphological and microscopical characters of Quinazoline alkaloid containing drug.
05
Q.3

Differentiate the following pairs of drugs:
i. Indian Henbane Egyptian Henbane
ii. Ephedra sinica Ephedra equisetina
iii.Rauwolfia serpentina Rauwolfia canascens
06

Write a note on radiotracer techniques.
05

Discuss in brief on substituents of Ipecacuanha.
05
Q.4

Draw chemical structure and give specific chemical tests for followings (ANY THREE)
i. Quinine ii. Atropine iii. Reserpine iv. Strychnine
06

Give the biosynthetic pathway for tryptophan.
05

Write chemical constituents with structure and uses of Ashgandh.
05
Q.5

Comment on following statements:
i. Fresh Cola seeds are preferred over dried seeds.
ii. In murexide test caffeine gives red color.
iii. The inner bark of cinchona turns red to yellow.
06

Write a pharmacognostic note on drug used in amoebic dysentery.
05

Give chemical constituents and uses of Duboisia and colchicum.
05
Q. 6

Discuss the saprophytic cultivation of ergot with merits and demerits of the method.
06

Write a note on importance of biosynthetic pathways study of plants.
05

Write short note on
i. Toxicity of belladonna Aconite ii. Veratrum alkaloids
05
Q.7

Describe cultivation, collection and uses of cinchona bark.
06

Discuss in brief on stereoisomerism of alkaloids giving suitable examples.
05

Enlist different types of tea. How they are prepared?
05