FACULTY OF PHARMACY
B. Pharmacy 2/4 II Semester (Main) Examination, May 2017
Subject: Pharmacognosy
Time: 3 Hours Max.Marks: 70
Note: Answer all questions. All questions carry equal marks.
1 Write the classification of crude drugs and their merits and demerits. 5
Describe the post harvesting techniques. 9
OR
Explain the effect of exogenous and endogenous factors which influence the
chemical constituents during cultivation of medicinal plants. 14
2 Explain the Shikimic acid pathway. 14
OR
Write a note on:
Competitive feeding technique 7
ii) Precursor-Product sequence. 7
3 Write the importance and method of determination of:
Moisture content 5
ii) Foreign organic matter 3
iii) Stomatal index 3
iv) Crude fiber content 3
OR
Define the evaluation and explain the microscopic evaluation. 6
What is adulteration and write a note on types of adulteration. 8
4 Write the sources and chemical test for:
Agar 3
ii) Pale catechu 3
iii) Tragacanth 3
Write the source, chemical constituents and therapeutic uses of Amla. 5
OR
What are Tannins? Classify and give the color reactions. 5
Give an informative note on isabgol, linseed and castor oil. 9
5 Write the preparation and applications of Papain. 3
Give the microscopic and chemical difference of jute, cotton and Hemp fibers. 8
Write a note on Cochineal. 3
OR
Write the sources and test for silk and wool. 4
Write the sources, preparation, chemistry and uses of Cod liver oil. 6
Write the preparation of Gelatin. 4