UPTU Previous Year Exam Papers
BE 8th Semester
Biology of Natural Products 2006-07
Notes : (i) Attempt all questions
(ii) All questions carry equal marks.
1.What are the major categories of plant based secondary metabolites ? Give examples.
Describe the production method of a secondary metabolite from microbial sources.
2. Differentiate between primary and secondary metabolism. How does secondary metabolism in plants have evolutionary significance ?
Describe the biosynthesis of isoprenoids with flow diagrams.
3 Enumerate and discuss the important secondary metabolites and discuss about oxidoreductases.
Describe the feedback mechanism of enzymatic action. Discuss how enzymes are isolated from plant sources ?
4. Draw a typical microbial growth curve and explain the conditions of maximum secondary metabolite production.
Give two examples of plant based glycosides and briefly explain the major steps of biosynthetic pathway of any of them.
5. Write short notes on any two :
(b) Pharmaceutical importance of alkaloids
(c) Co-ordinate enzyme expression
(d) Oxidoreductase activity in metabolic pathways.