MB211 General and Environmental Microbiology B.Sc Question Bank : nmu.ac.in

Name of the University : North Maharashtra Universit
Degree : B.Sc
Department : Microbiology
Year : II
Name Of The Subject :MB211 General and Environmental Microbiology
Document type : Question Bank
Website : nmu.ac.in

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NMU Environmental Microbiology Model Paper

QUESTION – BANK S.Y.B.Sc. MICROBIOLOGY
(FIRST SEMESTER)
W.e.f. 2008-2009
Question Bank
MB 211– General and Environmental Microbiology

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Q1 Multiple Choice Questions.
1) The compound microscope consists of two lenses known as———-
a) Objective & Eyepiece. b) Objective & Condenser. c) Eyepiece & Occular.
2) In———Microscopy the object appears dark & the microscopic field is
a) Dark field. b) Bright field. c) Both. c) None.

3) ————of the following is/are the fluorochrome.
a) Rose Bengal. b) Acridine orange. c) Both. c) None.
4) In Phase contrast microscopy the special optical system makes it
a) Size. b) Diameter. c) Refractive index. c) Length.

5) The first phase contrast microscope was developed by———-in 1933.
a) Hans Janssen. b) Zacharias. b) Fredrick Zernike c) Lippershey.
6) In TEM, the microscopic column is maintained under———
a) Pressure. b) Vacuum. c) Temperature. c) Magnetism.

7) In SEM, the secondary electrons are converted into———–
a) Tertiary electrons. b) Electric current. C) Electric charge. c) None.
8) Symbiotic association may be roughly divided into two categories——
a) Ectosymbiosis & Endosymbiosis. b) Electric current. c) Both. d) None.

9) Lichen is the symbiotic association of—————-
a) Fungi & Bacteria. b) Fungi & Algae. c) Algae & Bacteria. d) Protozoa & Virus.
10) Bioluminescence is the property of producing———-
a) Rays. b) Light. c) Current. c) Darkness.

11) ———–is the type of endosymbiosis.
a) Cooperation. b) Commensalisms. c) Mutualism. c) Predation.
12) ———–bacteria can fix the nitrogen.
a) Pseudomonas. b) Staphylococcus. c) Rhizobium. c) Lactobacillus.

13) The term commensal was introduced by ———- in 1876
a) Pierre Joseph Van Beneden. b) Lippershey. b) Robert Hook c) Hans Janssen.
14) The fungal mycelium penetrates the root cells by means of
a) Arbuscules. b) Absorbing organ. c) Hausteria. c) None.

15) The ruminants are a group of ————- mammals.
a) Carnivorous. b) Herbivorous. c) Omnivorous. c) None.
16) In Lichen, the fungle partener is called as————-
a) Phacobiont. b) Photosymbiont. c) Mycobiont. c) All of above.

17) Bioluminescence property is common to several species of———
a) Vibrio & Shigella. c) Photobacterium & Vibrio. d) Photobacterium & Shigella

18) ————is the obligatory interaction.
a) Mutualism. c) Commensalism b) Cooperation. d) Ammensalism.

19) The digestive tract of ruminant contains———- successive stomach.
a) Two c) Three d) Four d) Six
20) ——– device is used for the enumeration of bacteria in air.
a) Lemon Sampler. b) Andersons air sampler. c) Capillary impinger
21) ——— species of Clostridium is specially acts as index organism.
a) tetani. c) botulinum. d) perfringens e) None.

22) ———-are used frequently as indices of fecal pollution in water & food.
a) Only E.coli. c) E.coli & Cl.perfringens.
d) E.coli & Strept.facalis. d) Cl.perfringens & Strept.faecalis.

23) ———test/ tests are used in the routine analysis of coliform.
a) Presumptive test. c) Confirmed test.
d) Completed test. e) All of the above

24) ———-medium is used in the presumptive test.
a) Lauryl sulphate tryptone broth. c) Mac Conkeys broth.
d) Sodium azide glucose broth. d) Yeast extract mannitol broth.

25) For enumeration of coliform organism———— method is used.
a) IMViC reaction. c) MPN.
d) Standard plate count. d) None of the above.

26) In laboratory many sea bacteria grow at 300C & 15000Ib/inch these are known as————.
a) Barophilic. c) Obligatory barophilic.
d) Psychrophilic. d) Mesophilic.

27) The organism whose natural habitat is terrestrial & which are able to grow in media without sea water yet able to tolerate varying degrees of salinity are known as————–.
a) Indigenous organism. b) Transient organism.
c) Halotolerant organism. c) None..

28) The size, weight, moisture content &———– of air born particles are of importance in consideration of methods for disinfecting air.
a) Shape b) Opacity to UV light.
c) Both c) None.

29) The coliform group includes all the ————–Bacilli.
a) Aerobic & facultative anaerobic. b) Gram negative.
c) Non-spore forming c) All of the above.

30) ————–test is designate to enumerate total viable pollution.
a) Presumptive test b) Completed test.
c) Standard plate count. c) Confirmed test.