A Best Way To Crack Gorenment Job Exams

Microbiology Objective Questions { Industrially Useful Microbial Processes }

1. Which of the following was the first amino acid to be produced commercially?
A.L-glutamic acid
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2.  The Candida species require fermentation equipment lined with plastic because they are extremely sensitive to
A.traces of cobalt
B.traces of nickel
C.traces of iron
D.none of these
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3. Cycloserine may be isolated from the cultures of
A.S. orchidaceus
B.S. lavendulae
C.S. garyphalus
D.All of these
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4. The first penicillin isolated by Alexander Fleming, penicillin F is also called
A.2-Pentenyl Penicillin
B.n-heptyl penicillin
C.phenoxymethyl penicillin
D.benzyl penicillin
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5.  It is mandatory that cultures and fermentation residues be sterilized before discard in case of Eremothecium ashbyii and Ashbya gossypii because they are
A.plant pathogens
B.human pathogens
C.plant mutants
D.none of these
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6.  Which of the following when used in proper concentration stimulates the Ascomycetes fermentation of vitamin B12 and can be used to counteract toxicity of iron in Candida species?
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7. Pectinase, an enzyme used for increasing yield and for clarifying juice is obtained by
A.A. oryzae
B. A. niger
D.all of these
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