North Maharashtra University 2008 B.Sc Microbiology F.Y. -exam question paper

-----------------------------------------------------------------
NORTH MAHARASHTRA UNIVERSITY, JALGAON
ques. Paper F.Y.B.Sc. MICROBIOLOGY
PAPER I :- ELEMENTARY MICROBIOLOGY w.e.f. 2008-2009
-----------------------------------------------------------------




Q.1 Briefly discuss subsequent (8 marks each)


1. Why were Antony Von Leeuwenhoek’s observations Consider the critical 1st step
in the development of microbiology.
6. What is spontaneous generation? discuss how Louis Pasteur and J.F. Tyndell
disprove the method.
7. How Pasteur and Tyndell disproved the controversy over abiogenesis? discuss.
8. explain the development of pure culture technique with respect to Polymorphism
belief.
9. discuss the contribution of S.Winogradsky, M.Beijerinck, and D.Ivanowsky.


Q.2. select accurate choice for subsequent (2 marks each)
1. A nutrient material prepared in laboratory for the growth of microorganism is
called as ___________.
a) Culture media b) Inoculum c) Culture media d) Suspension
2. The time needed for cell division is called as ___________
a)Generation time b)Generation rate c)Generation time d)Reproduction
3. Generation time of E. coli is ____ minute.
a) 20 b)10 c) 15 d) 05
4. Bacterial cell do not immediately reproduce in new medium for little period is
called as _____ phase.
a) Stationary b) Logarithmic c) Lag d) Death
5. In what phase of typical bacterial growth curve dose the cell destroy rate exceed
than the cell multiplication rate __
a)Lag phase b) Exponential phase c) Stationary phase d) Death phase
6. When volume of bacteria is very small, subsequent plating method is used __
a) Pour plate b) Streak plate c) Spread plate d) filtration
7. ____ method used to know bacterial suspension population from the described area
of microscopic slide.
a) Direct microscopic count b) Most probable number
c) both (a) & (b) d) None of these
8. The instrument used to measure turbidity is a __
a) Autoclave b) Spectrophotometer c) Incubator d) Fermenter
9. For filamentous bacteria and moulds, are usually measured by ___ method
a) Turbidometric b) Dry weight c) All of these d) None of these
10. Bacteria reproduced by __
a) Fragmentation b) Binary fission c) Budding d) all of these

Earning:   Approval pending.