From the desk of the HOD…
Dept. of Microbiology
“The highest education is that which does not merely give us information but makes our life in harmony with all existence.”
–Rabindranath Tagore
We, here at Dhruba Chand Haldar College, strive throughout the year to motivate students and maintain a conducive environment to empower their understanding and critical thinking ability through various challenging activities. Our main aim is to establish a prime student-teacher interaction so that our students can benefit the most.
Microbiology is a fast-developing interdisciplinary field of study, which was established in the undergraduate level in West Bengal way back in the late 1990s and early 2000. Ever since, this subject has intrigued several students and opened up a great deal of opportunities.
However, in remote areas like ours, amidst all obstacles, we urge students to look beyond what their socio-economic status offers them, and dream big. It is undeniable that opportunities do not come easy here, but we focus on fulfilling the dreams and aspirations of our students, no matter how impossible it may seem. We intend to make our students so capable that they may be par excellence.
We aim to motivate students and show them the path to excellence, not merely through academic courses, but also encourage them to participate in the different educational tours (institute/ industrial visits), seminars, research scopes via collaboration with other reputed national labs and colleges, science quizzes, and magazine compilation and so on.
Here, in the Dept. of Microbiology, we strive to maintain a very ambient environment, and uphold the true spirit of learning and education. We urge all our students to delve deep and explore this subject that they have taken up, so that they may prosper ahead in life with the knowledge they gain from here.
DR. MALINI BASU
HEAD OF DEPARTMENT
DEPT. OF MICROBIOLOGY
DHRUBA CHAND HALDAR COLLEGE
ABOUT THE DEPARTMENT
The Department of Microbiology of Dhruba Chand Halder College was established in the year 2000. Academic Session 2000-2001 for both General and Honours in Microbiology started under the affiliation of Calcutta University.
The department is housed in the First Floor of the Science Building situated in the north-east part of the College campus. The department comprises of two laboratories and an inoculation room.
This department has four teaching and one non-teaching staffs. The teachers are competent enough to teach both Hon ours and general syllabi. It is achieved through rotation of topics assigned to be taught every year among the teachers. The teachers are continuously striving to upgrade themselves so that they can teach the new inclusions in the syllabus as well keeping themselves abreast of the upcoming developments in the field of Microbiology. These are being achieved through attending workshops, seminars as well as surfing the internet and research related works.
The syllabus of Microbiology (Honors & General) has been revised by Calcutta University in 2009 -2010 and recently semester system curriculum has been implemented by UGC and implemented subsequently. The department has prepared module of the syllabus so that the topics can be taught in sequential manner within the time framework. The maturity of the students in understanding the topics is also kept in mind while making the module so that easier & basic topics are taught first and gradually shifted to the tougher topics. For more interest teachers are adopted for ICT mode of teaching and also apply it since 3 to 4 years.
Group discussions are held with the students to learn about their difficulties in the understanding of the subject and adequate remedial measures are taken. The teaching-learning interactions are also done in such a manner that the students show spontaneous response and interest on their behalf and also do not feel burdened. Meeting with guardians of students are held, especially when a student is not performing well or showing poor attendance in class.
The Department also has one desktop and one laptop by which teachers and students are benefitted by surfing internet. Departmental library also equipped with more than 100 different international and national theory as well as practical books on Microbiology. Teachers always motivate the students to gather as much as knowledge from these resources.
This department also has a rich laboratory for undergraduate level students containing Spectroscopy, Cold Centrifuge, Vertical gel electrophoresis, Horizontal gel electrophoresis, BOD incubator, -20 refrigerators, Immunoelectrophoresis like neoteric instruments. All the students are equally able to get chance hands on experience of the entire practical in their own department.
The Department also conducts the industrial and research Centre visit like Indian Institute of Chemical biology, National Institute of Biomedical Genomics, IFB industry, Metro Dairy, Vivekananda Institute of Biotechnology etc. for various industrial and research prospects of our microbiology students.
Our previous students are engaged in various reputed institutions and industries in all over the India. Many students securing all India based competitive exams in PG and PhD levels. Some of them become the Assistant Professors in various State Govt. and State Govt. Aided colleges. Some of them are engaged in various industries, national and state govt. research institutions.
DEPARTMENTAL PROFILE
Special contact for student correspondence
College Phone No. |
03218-223668 (Office) |
Website |
|
Departmental Email |
dchmcbio2020@gmail.com |
Link for UG Hons. And General Syllabus:
https://www.caluniv.ac.in/CBCS/UG-Microbiology.pdf
STRENGTHS
The Department of Microbiology may be small, but it offers a well-rounded program and extensive scope in many areas of Microbiology.
The Department has a well-equipped Microbiology laboratory, well-stocked Departmental library & highly experienced & efficient teaching staff & non-teaching staff.. Most of the students get admissions into M.Sc. courses in reputed colleges. All the teachers put in their full dedication to prepare the students well. Inclusion of research into some of the classroom learning experiences further enhances student learning and development. The Department provides collaborative interaction of students with Industry Experts.
VISION & MISSION
COURSE OUTCOME
The main aim of education is to make the person better and to let them develop the various skills that they need for their life. Education should not only be the knowledge of knowing the facts but it should also be the knowledge of learning and implementing what one knows. The Department aims at providing a student with a thorough grounding in the basics of Microbiology. Students will be able to acquire, articulate, retain and apply specialized knowledge relevant to microbiology. Students will acquire and demonstrate competency in laboratory safety and in routine and specialized microbiological laboratory skills applicable to microbiological research or clinical methods, including accurately reporting observations and analysis. Students will communicate scientific concepts, experimental results and analytical arguments clearly and concisely, both verbally and in writing. Students will demonstrate engagement in the Microbiology discipline through involvement in research or internship activities
ACTIVITIES:
Serial No. |
Event Name |
Dates |
Resource Person |
Supporting Documents |
3 |
Adapting to The New “Normal’’: International Virtual Biology Discussion |
07.11.2020 |
Dr. Indranil Paul |
|
2 |
Annual Departmental Magazine Opening and Teachers day Celebration |
05.09.2020 |
|
To view the magazine : |
1 |
Making Sense of Uncertainity: Coping in the Era of Coronavirus |
25.07.2020 |
Dr, Dhrubajyoti Chattopadhyay |
To view the Flyer: |
The departmental students take immense interest in the different co- curricular activities of the department & College also. They actively participate in the Quiz Competitions, different Social Welfare and Awareness Programs, Seminars, etc. The students prepare and publish the departmental Wall Magazines. During excursions the students successfully execute their responsibilities and cooperate with the teachers and staff.
The teachers always trying to arrange such different programs, industrial visits, outreach programs and research institute visit for growing interests, learning new techniques related to microbiology and gaining knowledge about the prospects of microbiology field.
The students actively participate in different extracurricular activities like sports, social functions, health check-up camps, etc. Organized in the college. Many of the students can sing, dance, recite, write articles and poems, etc.
List of Visit organized by Departmental Teachers in Industries & Research Institutes
YEAR |
WHERE VISITED |
SPECIALIZED FOR |
DURATION |
|
2008 |
Vivekananda Institute For Biotechnology, RamKrishna Mission, Nimpith |
Mainly Biotechnological Products such as Various types of Bio fertilizers, Vermicomposts, Azolla, Production Of Mushrooms & various types laboratories sre there such as Plant Tissue Culture labs, Soil Testing, Water Testing labs. |
1 day |
To view Photographs click on the link: http://dchcollege.org/main/photo/index.php/MicroBiology/Visit |
2009 |
IFB Agro Industries, Noorpur |
Mainly Beverage Factory. |
1 day |
To view Photographs click on the link: http://dchcollege.org/main/photo/index.php/MicroBiology/Visit |
2010 |
Metro Dairy Industries, Barasat |
Mainly Dairy Industry |
1 day |
To view Photographs click on the link: http://dchcollege.org/main/photo/index.php/MicroBiology/Visit |
2019 |
IICB Salt lake |
Central Govt. Research Institute. A visit specially for showing modern instruments and techniques applied in their practical. |
1 day |
To view Photographs click on the link: http://dchcollege.org/main/photo/index.php/MicroBiology/Visit |
2019 |
NIBGm, Kalyani |
Central Govt Research Institute. |
1 day |
To view Photographs click on the link: http://dchcollege.org/main/photo/index.php/MicroBiology/Visit |
List of Departmental Seminars organized by Departmental Teachers
YEAR |
ABOUT |
RESOURCE PERSON |
DURATION |
|
2010 |
Recent Trends And Scopes in Biotechnology and Microbiology |
----- |
1 day |
To view Photographs click on the link: http://dchcollege.org/main/photo/index.php/MicroBiology/Seminar |
2019 |
Bacteria As Cell Factories for Production of Green Plastics |
Dr. Amal Kanti Paul |
1 day |
To view Photographs click on the link: http://dchcollege.org/main/photo/index.php/MicroBiology/Seminar |
Wall Magazine:
Every year teachers take initiative to release wall magazine where mainly students were participated with the help of respective teachers.
To view Photographs click on the link: http://dchcollege.org/main/photo/index.php/MicroBiology/Dept-Activity
Departmental Programs:
Students are main arranger of these events. They first take decisions about these and then consult with teachers. Then permission are taken from HOD of Microbiology department for departmental participation and finally take permission from principal to invite other departmental teachers and students. They organize mainly Teacher’s Day, Fresher’s Welcome and Farewell ceremony.
To view Photographs click on the link: http://dchcollege.org/main/photo/index.php/MicroBiology/Dept-Activity
Participation of Intercollege Cultural Program and Sports
Departmental teachers are always insist the students for taking part to intercollege competitions like quiz, sports, debates, singing, recitations etc.
To view Photographs click on the link: http://dchcollege.org/main/photo/index.php/MicroBiology/Dept-Activity
Student’s Contribution:
Recently in Covid-19 lockdown period students of microbiology has made a video in which they mean to fight against corona and this fighting spirit will brig the new corona free morning we all are eagerly waiting.
To viewVideo click on the link: https://youtu.be/oEZ3wmrhFsQ
PLACEMENTS RECORDS OF THE PAST STUDENTS AND CONTRIBUTION OF THE DEPARTMENT TO AID STUDENT PLACEMENTS:
Mission Asram, Nimpith, South24 Pgs.
Joint CSIR-UGC NET 21-06-2015, Rank-130/0814
South 24 Pgs.
Dr. Anirban Siddhanta. Now Appointed as Assistant Professor
in Barasat Govt. College
Training Laboratory.
Outsourcing) Australian Student’s Teacher on Microbiology.
And many more
Question Bank From SEM-1 to SEM-4
QUESTION BANK
CC1 (Protozoa, Fungi, Algae)
Answer in one word (1 mark)
Brief answered questions (2 marks/3 marks)
CC2 :( Taxonomy, Systematics, Microscopy)
Short Question (2 marks)
CC3 (Protein, Enzyme, Vitamin, Carbohydrate, Nucleic acid):
Short Question (2 marks):
Explanative Question (3 marks)
CC4 (CELL BIOLOGY)
ii) Describe briefly about the enzymes of that organelle. 2.5
ii) Describes about glycosylation out of that. 2.5
CC5 (Virology)
CC-6 (MICROBIAL PHYSIOLOGY AND METABOLISM)
2+2+2+2+2=10
CC-7 (MOLECULAR BIOLOGY)
2+3+2+3=10
BIOREMEDIATION, DEGRADATION OF ORGANIC COMPOUND , DRINKING WATER AND WATER TREATMENTS
CC-8: MICROBIAL GENETICS
1. Answer all questions.
a) What are the genotypic difference between F+, F- and Hfr cells?
b) What is Balanced lethal mutation?
c) What do you mean by abortive transduction?
d) Why LINEs are referred to as retrotransposons?
e) What is linker DNA?
f) What is SOS box?
g) What is junk DNA?
h) What do you mean by sexduction?
i) Write the name of two alkylating and two Intercalating agents.
j) Write down the difference between Specialized and Generalized transduction. 2x10
2. (a) You have a naturally transformable bacterial strain. How do you determine whether it
can take up DNA only from its own species or it can take up any DNA ?
(b) What is the use of F’ factors in genetic analysis?
(c) Write a short note on Wobble Hypothesis. 3+2+5
3. (i) Differentiate between:
(a) missence and nonsense mutation.
(b) LINE and SINE
ii) What are the important criteria to choose in order to maintain two different plasmids in a
single cell?
iii) Name the genes whose products (a) might not be expected on plasmids and (b) might be
expected on plasmids? (2.5x2)+2+3
4. (a) What is the significance of Cot value analysis?
(b) What are composite transposons and how do they differ from simple ones?
(c) What is meant by maternal inheritance?
(d) Define plasmid incompatibility. How do Par proteins functions function in plasmid
partitioning? 2+2+3+3
5. (a) Discuss the role of RecBCD protein complex in recombination during conjugation and
transduction.
(b) Why are frameshift mutations more likely than missense mutations to result in proteins
that lack normal function?
(c) Which phenotype rifampin or leucine auxtroph will have higher mutation rate and why?
(d) What is transformation efficiency? What is electrotransformation?
CC-9: ENVIRONMENTAL MICROBIOLOGY
Unit 1
Answer the following questions in one to two words (1 mark each)
1. Write the name of first identified Hyperthermophile
2. Write the name of the world toughest bacteria
3. Write the name of oil-eating bacteria
4. Which bacteria grow at 37°C?
5. Which bacteria grow at high osmotic pressure?
6. Define the term barophile
Answer the following short questions (2 marks each)
1. What is Extrimophiles?
2. Define Halophiles with an example
3. Which factors affecting the rate of decomposition?
4. Write the feature of Oligotrophs
5. Define Psychrotolerants. Give an example
6. Define radioresistor with an example
7. Define xerophile with an example
8. Define barotolarent with an example
9. What are the different extreme environmental conditions?
10. State about the occurrence of Oligotrophs.
Answer the following broad questions (more than 2 marks)
1. What are the characteristic adaptations of oligotrophs? Give an example of it. Write
the biotechnological application of halophiles. (2+1+2)
2. Explain the adaptive mechanism of psychrophiles. Why psychrophiles are known as
bioremidiators? . (2+2)
3. Classify the thermophiles with respect to temperature and give an example of each.
Explain the adaptive mechanism of thermophiles with diagram (1.5+1.5+2)
4. Write the biotechnological application of acidophiles and alkaliphiles ( 2+2)
5. Why microorganism decomposes plant organic materials? Explain the different
decomposition process. (2+3)
Unit 2
Answer the following questions in one to two words (1 mark each)
1. What is neutralism?
2. What is bio-fertilizer?
3. What is ammensalism?
4. What is meant by the term fixed Nitrogen?
5. What is the biological significance of root nodule formation legunes?
6. What is competitive exclusion?
7. What are rhizobia?
Answer the following short questions (2 marks each)
1. State differences between mutualism and commensalism? Give example.
2. Give example of ammensalism and synergism.
3. Compare bio-fertilizers and chemical fertilizers.
4. Define predation and parasitism. How are these similar and different?
5. Discuss mutualism relationship between two microbial population.
6. How do Rhizobia colonize the legume root?
7. Why is nitrification a good example of commensalistic process?
8. How does bio-fertilizers enhances soil fertility?
9. How do Azotobactor and Rhizobium sp. protect their nitrogenase from oxygen?
10. How do molybdenum and vanadium and leg haemoglobin influence nitrogenase
activity?
11. Describe the differences between symbiotic and asymbiotic nitrogen fixation.
12. Briefly describe the process of nitrification and de-nitrification.
13. Discuss the differences among symbionts and opportunist and pathogens.
14. What factors determines the attraction of Rhizobium to the root surface of legume
plants?
15. With suitable examples define commensalism.
16. Write notes on nod gene?
17. Differentiate between competition and predation with respect to microbial interaction.
18. What are the two kinds of nitrogen fixing bacteria? Elucidate with example.
Answer the following broad questions (3 marks each)
1. Briefly state the mechanism of biological nitrogen fixation.
2. Write short notes on Rhizobium.
Unit 3
Answer the following questions in one to two words (1 mark each)
1. What is meant by cross inoculation group?
2. What is nod cluster?
3. Differentiate between nitrification and ammonification
4. Distinguish between nitrate assimilation and denitrification.
5. What is infection thread?
Answer the following short questions (2 marks each)
1. Name the signal molecules secreted by legumes to interact with Rhizobia.
2. What is leg-hemoglobin? What is its function?
3. Differentiate between symbiotic and non-symbiotic nitrogen fixation?
4. What role played by IAA and lectins in biological nitrogen fixation?
5. What are nif genes and nif clusters?
Answer the following broad questions (more than 2 marks)
1. Write the chemical nature of dinitrogenase complex. 4
2. Give an account on the symbiotic and non-symbiotic nitrogen fixers with their specific
hosts. 4
3. Write the role of TCA cycle acids in amino acid biosynthesis. 3
4. Write the reactions catalysed by GS and GOGAT and mention their regulatory roles. 4+2
5. Write the role of different types of cofactors involved in dinitrogen fixation in Rhizobia. 4
Unit 4
Answer the following questions in one to two words (1 mark each)
1. What is waste?
2. Define biomedical waste.
3. Define MSW.
4. What is e-Waste?
5. What do you mean by Waste management?
6. What is hazardous waste?
7. What is composting?
8. What is C/N ratio?
9. Define BOD
10. Define COD
11. Define NOD
12. What are coliform bacteria?
13. What do you mean by eutrophication?
Answer the following short questions (2 marks each)
1. Write the different categories of solid waste.
2. Describe the risks and problems associated with solid wastes.
3. What is the “4R”s of waste management?
4. What do you mean by sludge and activated sludge?
5. Write the characteristics of an indicator organism
6. What do you mean by secondary waste water treatment?
7. What do you mean by tertiary waste water treatment?
8. Write the importance of secondary sewage treatment.
9. Write the importance of tertiary sewage treatment.
10. Describe how solid sludge is disposed after sewage treatment.
Answer the following broad questions (3 marks each)
1. Briefly describe activated sludge process of waste water treatment
2. Briefly describe trickling filter process of waste water treatment
3. Briefly describe the various processes of tertiary waste water treatment.
4. Write short note on organic composting.
5. Write short note on sanitary landfilling.
Unit 5
Answer the following questions in one or two words (1 mark each)
1. What do you mean by bioremediation?
2. Define the following terms
Biostimulation, Bioaugmentation, Biosparging, Bioventing, Biopiles
3. What do you mean by Xenobiotic compound?
4. What is bioleaching?
5. What do you mean by in-situ and ex-situ remediation?
6. What is Super Bug?
7. Wtat are PAHs?
Answer the following short questions (2 marks each)
1. Describe the role of microbe in degradation of DDT
2. What are the limitations of Bioremediation?
3. Write the advantages of Bioremediation
Answer the following broad questions (3 marks each)
1. Describe the different techniques used in bioremediation process
2. Write Mechanisms of Heavy Metal Remediation by Microorganisms
3. Describe the role of microbes in remediation of inorganic contaminants
4. Describe the role of microbes in remediation of organic contaminants
Unit 6
Answer the following questions in one or two words (1 mark each)
1. Why is MPN called so?
2. During confirmatory test of coliform detection, methylene blue is used in the media.
Explain the reason.
3. What are coliforms?
4. What are indicator organisms?
5. Name an indicator organism other than E. coli
6. Define water treatment.
7. State the APHA guidelines about allowable coliform count in potable and recreational
water.
8. What is the function of a Durham’s tube?
Answer the following short questions (2 marks each)
1. What is FC/FS ratio?
2. State one example each of water borne disease caused by a) bacteria b) virus c)
protozoa d) fungi
3. What is the full form of SIM agar? For what purpose is it used?
4. How does UV light inactivate microorganisms?
5. Chlorine di-oxide is more efficient than chlorines and monochloramines in
disinfecting water. Explain the reason.
6. Explain the mechanism of ozonation mediated disinfection of water.
7. Apart from MPN, what is the other direct method of determining the no. of coliforms
present in a water sample?
Answer the following broad questions (more than 2 marks)
treatment of potable water? 3
chlorination? 3
simple chlorination? State its limitations. (2+2)
between typical and atypical coliforms. (2x4=8)
slant?
CC-10: RECOMBINANT DNA TECHNOLOGY
BAC, Cosmid, YAC, Plasmid pBR322
human insulin gene?
(b) How is DNA amplified without cloning?
(c) What is a disarmed strain of Agrobacterium tumefaciens? How can such a strain
be used to create a transgenic plant?
(d) DNA is a biologically inactive molecule, but can be used to produce an active
molecule (True / False)? [2+2+(2+3)+1=10]
PstI, which cleaves within the ampicillin resistance gene. The cut plasmid is
ligated with PstI digested Drosophila DNA to prepare a genomic library, and the
mixture is used to transform E. coli K12.
(i) Which antibiotic should be added to the medium to select cells that
have incorporated a plasmid?
(ii) If recombinant cells were plated on medium containing ampicillin
or tetracycline and medium with both antibiotics, on which plates
would you expect to see growth of bacteria containing plasmids
with Drosophila DNA inserts?
(iii) How can you explain the presence of colonies that are resistant to
both antibiotics?
You first clone the fragment in bacterial cells to produce enough DNA for
sequencing. Then DNA is isolated from bacterial cells and dideoxy sequencing is
carried out. Draw the bands that will appear upon gel electrophoresis from the
four sequencing reaction.
(b) Write the difference between Genomic and cDNA library.
(c) What is RFLP? Mention the utility of RFLP.
(d) What is reporter gene? [3+2+(2+2)+1=10]
(b) Why is sodium hydroxide used for making cDNA?
(c) After 10 rounds of amplification how many copies of the amplified region should
you have theoretically?
(d) Describe how would you detect phosphorylated proteins in a given cell extract?
[(1.5+1.5)+2+2+3=10]
composition that is 62% G + C. How many times, on average, are the following
restriction sites likely to be present in this DNA molecule?
i). BamHI (recognition sequence is GGATCC).
ii). HindIII (recognition sequence is AAGCTT)
iii). HpaII (recognition sequence is CCGG)
(b) Describe how would you choose a suitable cloning vector used on the size of the
recombinant gene to be cloned. What is a yeast two hybrid system & what is the
specific purpose for which it is generally used? [5+(3+2)=10]