CS/B.Sc. (H), Micro-Bio./SEM-6/FAM-603/2012
2012
FOOD AND AGRICULTURAL MICROBIOLOGY
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
( Multiple Choice Type Questions )
1. Choose the correct alternatives for any ten of the
following : 10 × 1 = 10
i) Commensalism refers to the relationship of two
organisms
a) that live side by side, but have absolutely no effect
on each other
b) where one benefits at the expense of the other
c) that is mutually beneficial
d) none of these.
ii) Function of agriculture soil is
a) anchor plant roots
b) supply water to plant roots
c) furnish nutrients for plant growth
d) all of these.
iii) Causative microbes in fresh fruits and vegetables are
a) Penicillium b) Pseudomonas
c) Bacillus d) Rhizopus.
iv) In organic matter decomposition of bacteria is involved
as
a) population increases rapidly
b) quickly degrade simple compounds — sugars,
proteins, amino acids
c) have a harder time degrading cellulose, lignin,
starch
d) all of these.
v) When organic matter is added to soil fungi
a) able to degrade complex organic molecules such as
cellulose, lignin, starch
b) give other soil micro-organisms access to simpler
molecules that were protected by cellulose or lignin
c) grow more slowly and efficiently than bacteria
d) all of these.