Thapar University 2007 M.Sc BioTechnology applied microbiology - Question Paper
THAPAR UNIVERSITY
Department of biotechnology& Enviornmental sciences
End semester exam (Sem2, 2006-2007), MSc Biotechnology(1)
Department of Biotechnology and Environmental Sciences Thapar University
(under section 3 of UGC Act, 1956 vide notification# F12/84-U.3 of Govt, of India)
(Formerly Thapar Institute of Engineering & Technology)
End semester examination (2007-2008)
Course No.BT-003 Course Name: Applied Microbiology
Date of Examination: 29.05.2007 Session: 900- 1200 firs
Maximum Marks: 36
Instructions:
Please read the questions carefully
Write legibly
Draw diagrams/ Chemical Structure where ever necessary
ATTEMPT ANY FOUR (04) QUESTIONS IN SEQUENCE ONLY
*******************************************************************************
Q.l (a) Which is the best method of enzyme immobilization and why? Give the (1.5+1.5) applications of immobilized Enzymes.
(b) Define Probiotic. Give the name of a bacterium and yeast used which is used as a (1.0+1.0) probiotic.
(c) What are the fermentation control parameters for dough fermentation in (1.5+1.0) breadmaking? What does Chopin Rheofermentometer do in fermented bakery products?
(d) Give three ways by which the microbes contribute to the process of enhanced oil (1.5) recovery.
Q. 2 (a) Define Vaccine. Give the difference between conjugate vaccine and subunit (1.0+1.5) vaccine giving suitable examples.
(b) Explain in details the processes involved in commercial production of Beer. (350- (4.0) 500 words)
(c ) Cheese and yoghurt both are fermented dairy products. How do they differ from (1.5) each other in terms of raw products, starter cultures, and fermentation parameters?
(d) Give the name of wine making yeast and highlight its characteristics. (1.0)
Q.3 (a) Write short notes on any two: (a) Algalization (b) Sherry (c) Liposome (2.0)
(d)Bioremediation
(b) What roles do the microbes play in the rhizosphere? (2.0)
(c) What is mycoprotein? Give the well labeled diagram for the commercial (1.0+3.0) production of Quron.
(d) What are the processes used by microbes for recovery of gold and copper from (1.0) their ores?
Q.4 (a) Define Biomining. Give the two major processes used by microbes in biomining. (1.0+0.5)
(b) Give the difference between Lager beer and Ale? (1.5)
(c) Which fermented beverage has an angel's share? What does angels' share refer (0.5+1.0) to?
(d) Give the flowchart of production of motorgrade fuel ethanol (MGFE) highlighting (4.5) the necessary conditions of each step.
Q.5 (a) Differentiate between wine and whisky on the basis of their commercial (4.5) production processes comprising of raw material, cultures, fermentation parameters, post fermentation processes and packaging.
(b) What are Biopesticides? Give the advantages of Biopesticides over synthetic (2.5) chemical pesticides.
(c) 10 grams of leaves have a total surface area of 7396 cm2. 10-6 dilution in the test (2.0) tube gave 65 colony forming units (CFU) when 100 was dispensed on premade nutrient agar petri dish. Calculate the CFU/gm and CFU/ cm2 of microbes present
in the phylloplane?
Q.6(a) "Microbes play an important role in supply of nitrogen to plants" Justify the (3.0) statement.
(b) What are the fermentation parameters for the production of Penicillin? (1.5)
(c) What is microbial commodity chemical? Highlight the role of microbes in the (2.0) production of Acrylamide.
(d) Write briefly about (approx 250-300 words) any TWO: (i) Role of enzymes in food (2.5) industry (ii) Thermophilic bacteria (iii) Phosphate solubilizing microbes and
agriculture.
Best of ImH
***************************** 0*0* a/ ttAtiI ******************************************
|
Attachment: |
| Earning: Approval pending. |
