Download PTU B.Tech 2021 Jan Food-Technology 3rd Sem 78728 Introduction To Biology And Microbiology Question Paper

Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January Food-Technology 3rd Sem 78728 Introduction To Biology And Microbiology Previous Question Paper

Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (Food Technology) (Sem.?3)
INTRODUCTION TO BIOLOGY AND MICROBIOLOGY
Subject Code : BTFT-211-19
M.Code : 78728
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Write briefly :
1)
What is the difference between Meiosis and mitosis?
2)
What are the functions of Nucleus and Nucleolus?
3)
What do you understand by Nitrogen mineralization?
4)
Name the microorganism involved in curd, yoghurt and cheese.
5)
What is the role of microorganisms in the pest control?
6)
What kind of foods spoiled by the yeast and molds?
7)
What kind of microorganisms are associated with soil fertility?
8)
Enlist the various factors affecting the growth of microorganism.
9)
What is the difference between beta oxidation of saturated and unsaturated fatty acids?
10) Differentiate between the macro and micro nutrients. What are the sources of micro
nutrients?
1 | M - 7 8 7 2 8
( S 2 ) - 3 6 0

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SECTION-B
11) What do you understand by DNA replication and protein synthesis?
12) What is the difference among the osmosis, active transport endocytosis, and exocytosis?
13) Write down the various classes of enzymes. Differentaiate between oxidoreductases and
isomerases with examples.
14) What is the difference in food borne infections and intoxication?
15) Write about the four distinct phases of the growth curve.
SECTION-C
16) Explain in detail the process of Nitrogen Cycle with suitable diagram.
17) a) Write down the existence, transmission and symptoms of Clostridium botulinum and
Bacillus Cereus Foodborne Intoxication.
b) Write down a short note of microbiology of water.
18) Explain in detail the process of glycolysis and Citric Acid Cycle.
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.
2 | M - 7 8 7 2 8
( S 2 ) - 3 6 0

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