Industrial Biochemistry Question Paper
Industrial Biochemistry
Course:Bachelor Of Science In Biochemistry
Institution: Egerton University question papers
Exam Year:2006
UNIVERSITY EXAMINATIONS
THIRD YEAR EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE
END SEMESTER 2005/2006
BIOC 305: INDUSTRIAL BIOCHEMISTRY
TIME:3Hrs
SECTION A:
1.Attempt all questions.Match the best statements of Column 1 and 11 from the following:-
COLUMN1
COLUMN11
i) Pullunalases a) Used in detergent industry
ii) 8-analyses are used in baked goods b) Subtilistin NOVO
iii) Chemical conversion of fructose produces metabolite c) Leather & food industries
iv) Di-isopropyl fluorophosphates is a chemical compound d) Stabilizers added to yoghurt
v) Application of soluble enzymes restricted e) Bacterial & fungal toxins
vi) Glucoamylases are used in starch sucharification f) Can be used as a food beverage
vii) Bacillopeptidases are the microbial enzymes g) Used in therapeutic purposes as digestive enzymes to supplement pancreatic lipase
viii) Renal & hepatic carcinogencity in mice are found to fur very frequently h) Splits the branch points of the starch molecule
ix) Contains serine at their active site i) Inhibitor of alkaline proteases for the molecule
x) Rennin is an acidic protease j) Can be used as an energy source
xi) Natural toxins are composed of chemical k) Inability to retain the enzyme within a stream of substrate
xii) The antibiotic,mitomycin C is effective to lyse the cellsl) Non-degradable compound and is toxic to cells
xiii) Aspergillus Rhizopores and candida providing lipases are commercially used m) Increase in proportion of fermentable carbohydrates
xiv) Ca2+and Zn2+ions are required for stability of enzymes n) Usually collected from slaughtered animals
o) Splits glucose from the non reducing end
p) Due to intoxication by Ochratoxins
q) Inhibitor of DNA synthesis
r) Helps to escape gas formed during fermentation process
s) Available at the sea surface
t) Collected from 3-4 weeks old calves raised by milk
u) Suppresses the inflammation of rheumatic arthritis
v) Produces pharmaceutical products
w) The enzymes have restricted applications
x) The more unit operations,the enzyme can perform
SECTION B: Answer any TWO from the following questions(12x2=24)
2. Account for the following statements:
a) The problems of chemical retained in the sewage effluents can be solved by adopting some recent strategies.
b) Citric acid is produced at the industrial level by manipulating the biochemical reactions.
c) Industrial resources used to protect the safety of environmental are very often injurious to normal food chain.
SECTION C: Answer all questions (32 marks)
3.Classify the principle of enzyme immobilization.Explain how the catalytic activities of the enzymes are protected by enzyme immobilization(16 marks)
4.Elucidate the fermentation process of beer.Discuss briefly how the various kinds of distilled spirits differ from one another.(16 marks)
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