Download PTU B.Tech 2020 March Biotechnology 3rd Sem BTBT 303 Microbiology Question Paper

Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech Bio-Technology (Biotechnology Engineering) 2020 March 3rd Sem BTBT 303 Microbiology Previous Question Paper

1 | M-55073 (S2)-833
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(BT) (2012 to 2017) (Sem.?3)
MICROBIOLOGY
Subject Code : BTBT-303
M.Code : 55073
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Describe briefly :
a) Bacterial endospore
b) Pili
c) Single cell isolation
d) Active transport vs. passive transport
e) Synchronous vs. asynchronous growth
f) Transduction
g) Continuous vs. Fed-batch fermentation
h) Biofertilizers
i) Solid state fermentation
j) Chemical sterilization
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1 | M-55073 (S2)-833
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(BT) (2012 to 2017) (Sem.?3)
MICROBIOLOGY
Subject Code : BTBT-303
M.Code : 55073
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Describe briefly :
a) Bacterial endospore
b) Pili
c) Single cell isolation
d) Active transport vs. passive transport
e) Synchronous vs. asynchronous growth
f) Transduction
g) Continuous vs. Fed-batch fermentation
h) Biofertilizers
i) Solid state fermentation
j) Chemical sterilization
2 | M-55073 (S2)-833
SECTION-B
2. Give a brief account of characteristics of bacteriophages.
3. Describe the factors affecting bacterial growth.
4. Describe the methods used for the measurement of bacterial growth.
5. Describe two important feed-stocks used for industrial fermentations.
6. Describe the large scale production of microbial insecticides.

SECTION-C
7. Describe various techniques used for preservation of microbes. Also highlight merits and
demerits of each technique.
8. What is bacterial recombination? Describe briefly transformation and transduction.
9. What is strain improvement? Describe the techniques used for the improvement of
industrially important microorganisms.







NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.

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