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

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NORTH MAHARASHTRA UNIVERSITY, JALGAON
ques. Paper F.Y.B.Sc. MICROBIOLOGY
PAPER I :- ELEMENTARY MICROBIOLOGY w.e.f. 2008-2009
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Q.4 define subsequent (12 Marks each)
1. Derive the mathematical formula for growth curve of bacteria.
2. discuss with diagram growth curve of bacteria.
3. discuss growth rate and generation time.
4. Briefly define the direct methods to measurement the microbial growth.
5. define in brief plate count method with serial dilution.
6. define in brief membrane filtration technique to measure the bacterial growth.
7. discuss the method of direct microscopic count.
8. discuss in brief estimation of bacterial number by indirect method.
9. What is generation time? provide the mathematical formula to determine generation
time.

Q.1 A. select accurate choice for subsequent (2 marks each)
1. Which of the subsequent defines prokaryotic cell membranes?
A) Selectively permeable b) contains proteins and phospholipids
c) Regulates passage of biomolecules d) all of the above.
2. NAM means:
a) N-acetyl murein b) N-acetyl muramic acid
c) N-acetoyl muramic acid d) None of the above.
3. 1 of the subsequent is the Gram Positive bacterium.
a) Escherichia coli b) Salmonella typhi
c) Bacillus subtilis d) All of the above
4. Component responsible for bacterial endospore resistance is,
a) Ca-dipicolinate b) Na-dipicolinate
c) colinic acid d) all of the above.
5. Volutin granules are also called as,
a) Babe’s Granules b) PHB Granules
c) Volatile Granule d) None of the above.
6. A “hair” like structure involved in chemotactic response of bacterium is called asa)
Flagella b) Pilli c) fimbriae d) all of the above
7. A capsule is similar with respect to pilli -
a) Permit attachment to surfaces b) are made of proteins
c) Contains dextran fibers d) All of the above.
8. NAM meansa)
N-acetylglycosamine b) N-acetylglucosamine
c) N-acetyl gluconamine d) None of the above.
9. A periplasmic space within the cell wall is obtained in ________bacteria and the space
contains _________.
a) Gram negative; Peptidoglacan b) Gram positive : lipids
c) Gram negative ; outer membrane d) Gram positive : porin proteins
10. A physics learner asked to a microbiology learner “Whether periodic or circular
motion is involved in motility of bacteria” As a microbiology learner what would
be your reply?
a) May be circular motion b) May be periodic motion
c) ques. is fundamentally wrng d) It is difficult to ans the ques..
11. 1 of the subsequent is the Gram negative bacteriuma)
Bacillus subtilis b) Escherichia coli
c) Staphylococcus aureus d) All of the above.
12. Bacterial cells are prokaryotic. In comparison to a typical eukaryotic cell, they
would have
a) smaller size b) smaller nucleus
c) no plasma membrane d) no internal membranous compartments
13. Which of the subsequent not correctly matches component with its function?
a) Lysosomes... Motility b) Mitochondria... Energy production
c) Ribosome…Protein synthesis d) Chloroplast…Photosynthesis

Earning:   Approval pending.