Solapur University
B.Sc. II (Semester – III) (New) Examination, 2015
MICROBIOLOGY (Paper – V)
Cytology, Physiology of Bacteria and Virology
Day and Date : Thursday, 28-5-2015 Max. Marks : 50
Time : 3.00 p.m. to 5.00 p.m.
N.B. : 1) All questions are compulsory.
2) Figures to the right indicate marks.
3) Draw a neat labelled diagram wherever required.
1. Choose the correct answers from given alternatives : 10
1) When the bacterial cells are suspended in a hypertonic solution, the effectexerted is called
a) Plasmolysis b) Plasmoptysis
c) Autolysis d) Photolysis
2) __________ is an example of thermophilic organism.
a) Bacillus psychrophilus b) E.Coli
c) Thermus aquaticus d) Klebsiella pneumoniae
3) Small solute molecules like H2O, CO2, O2 enters in cell by the way of
a) Passive diffusion b) Group translocation
c) Facilitated diffusion d) Active transport
4) _______ of the following linkages join NAG and NAM of bacterial peptidoglycan.
a) β (1 – 4) b) α (1 – 4) c) β (1 – 6) d) α (1 – 6)
5) Carboxysomes are involved in __________ activity.
a) CO2 evolution b) Photosynthesis
c) CO2 fixation d) Nitrification
6) Clostridium titani is an example of ________ spore forming organism.
a) Aerobic b) Anaerobic
c) Facultative aerobes d) Microaerophilic
7) Microorganisms bear a hydrostatic pressure of
a) 1 atm b) 3 atm c) 100 atm d) 200 atm
8) _______ is responsible for giving resistance to the endospore.
a) Dipicolinic acid b) Peptidoglycan
c) Diaminopimellic acid d) Ribosome
9) _________ enzymes are responsible for joining reaction.
a) Ligases b) Transferases
c) Oxidoreductases d) Lyases
10) In _________ phages adsorption to the host takes place with the help of tail and tail fibres.
a) HIV b) TMV c) T4 d) Hepatitis B
2. Answer any five of the following : 10
i) What is carboxysomes ?
ii) Define generation time.
iii) Define simple diffusion.
iv) Define sex pili.
v) Enlist types of organisms on the basis of temperature with examples.
vi) What is fermentation ?
3. A) Answer any two of the following questions in brief. 6
i) Explain direct microscopic count.
ii) With labelled diagram give structural properties of TMV.
iii) Write an account on PHB granules.
B) Give an account on structure and function of flagella. 4
4. Answer any two of the following : 10
i) Explain diauxic growth.
ii) Write an account on homolactic and heterolactic fermentation.
iii) Explain sporulation process.
5. Answer any two of the following : 10
i) Explain active transport mechanism.
ii) Describe cell wall of gram positive bacteria.
iii) Describe lytic cycle of T4 bacteriophage.
B.Sc. II (Semester – III) (New) Examination, 2015
MICROBIOLOGY (Paper – V)
Cytology, Physiology of Bacteria and Virology
Day and Date : Thursday, 28-5-2015 Max. Marks : 50
Time : 3.00 p.m. to 5.00 p.m.
N.B. : 1) All questions are compulsory.
2) Figures to the right indicate marks.
3) Draw a neat labelled diagram wherever required.
1. Choose the correct answers from given alternatives : 10
1) When the bacterial cells are suspended in a hypertonic solution, the effectexerted is called
a) Plasmolysis b) Plasmoptysis
c) Autolysis d) Photolysis
2) __________ is an example of thermophilic organism.
a) Bacillus psychrophilus b) E.Coli
c) Thermus aquaticus d) Klebsiella pneumoniae
3) Small solute molecules like H2O, CO2, O2 enters in cell by the way of
a) Passive diffusion b) Group translocation
c) Facilitated diffusion d) Active transport
4) _______ of the following linkages join NAG and NAM of bacterial peptidoglycan.
a) β (1 – 4) b) α (1 – 4) c) β (1 – 6) d) α (1 – 6)
5) Carboxysomes are involved in __________ activity.
a) CO2 evolution b) Photosynthesis
c) CO2 fixation d) Nitrification
6) Clostridium titani is an example of ________ spore forming organism.
a) Aerobic b) Anaerobic
c) Facultative aerobes d) Microaerophilic
7) Microorganisms bear a hydrostatic pressure of
a) 1 atm b) 3 atm c) 100 atm d) 200 atm
8) _______ is responsible for giving resistance to the endospore.
a) Dipicolinic acid b) Peptidoglycan
c) Diaminopimellic acid d) Ribosome
9) _________ enzymes are responsible for joining reaction.
a) Ligases b) Transferases
c) Oxidoreductases d) Lyases
10) In _________ phages adsorption to the host takes place with the help of tail and tail fibres.
a) HIV b) TMV c) T4 d) Hepatitis B
2. Answer any five of the following : 10
i) What is carboxysomes ?
ii) Define generation time.
iii) Define simple diffusion.
iv) Define sex pili.
v) Enlist types of organisms on the basis of temperature with examples.
vi) What is fermentation ?
3. A) Answer any two of the following questions in brief. 6
i) Explain direct microscopic count.
ii) With labelled diagram give structural properties of TMV.
iii) Write an account on PHB granules.
B) Give an account on structure and function of flagella. 4
4. Answer any two of the following : 10
i) Explain diauxic growth.
ii) Write an account on homolactic and heterolactic fermentation.
iii) Explain sporulation process.
5. Answer any two of the following : 10
i) Explain active transport mechanism.
ii) Describe cell wall of gram positive bacteria.
iii) Describe lytic cycle of T4 bacteriophage.
0 comments:
Pen down your valuable important comments below