B.Sc Visual Communication Question Paper

Loyola College B.Sc. Zoology April 2008 Reproductive Physiology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

 

TS 15

B.Sc.  DEGREE EXAMINATION –ZOOLOGY

FIFTH SEMESTER – APRIL 2007

ZO 5400 – REPRODUCTIVE PHYSIOLOGY

 

 

Date & Time: 03/05/2007 / 1:00 – 4:00          Dept. No.                                                     Max. : 100 Marks

 

 

 

Part A                                                 (Answer all )                           10 X 2 = 20

  1. Define Random collision.
  2. Differentiate spontaneous and induced ovulation.
  3. Comment on Graffian Follicle
  4. What is called ovarian fibrinae?
  5. Comment on uterine milk.
  6. Define blood testis barrier.
  7. Comment on interstitial cells of lydig.
  8. Differentiate contraception and abortion.
  9. List down the female sex hormones
  10. What is the role of epididymis in sperm maturation?

Part B                                                 (Answer any four)                 4 X 10 = 40

  1. Write an essay on the uniqueness of human reproduction.
  2. Discuss the process of descent of testis and abnormalities of testis descent.
  3. Discuss spermatogenesis and oogenesis in detail
  4. How twins are formed?
  5. Erection is purely a vascular phenomena – Justify.
  6. Explain the cross section of testis.

Part C                                                 (Answer any two)                              2 X 20 = 40

  1. Write notes on the following
    1. Female genital system
    2. Female sexual act
    3. Fertilization and parturition
    4. Hormonal control of pregnancy
  2. Discuss the problem of infertility in human
  3. Write an essay on Termination of unwanted pregnancy
  4. Form an essay on any five types of congenital anomalies

 

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Loyola College B.Sc. Zoology April 2008 Organic Evalution Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

TS 42

B.Sc.  DEGREE EXAMINATION – ZOOLOGY

SIXTH SEMESTER – APRIL 2007

Z 615 – ORGANIC EVALUTION

 

 

Date & Time: 26/04/2007 / 9:00 – 12:00        Dept. No.                                                     Max. : 100 Marks

 

 

 

 

 

Part A                                                 (Answer all)                           10 x 2 = 20

  1. What are vestigial organs? Give two examples.
  2. Define serial homology.
  3. What are coprolites?
  4. Name the biological realms of the world.
  5. Define germ plasm theory.
  6. What is allopatric speciation?
  7. Comment on Mullerian mimicry.
  8. State Biogenetic law.
  9. Comment on Eohippus.
  10. What do you mean by scansorial adaptation?

 

Part B                                                 (Answer any four)                             4 x 10 = 40

  1. Explain Lamarckian principles.
  2. Describe the concept of struggle for existence as explained by Darwin.
  3. Explain sexual selection theory.
  4. Write notes on animal colouration.
  5. Comment on precipitin tests.
  6. List down the summary of events in equine evolution.

 

Part C                                                 (Answer any two)                              2 x 20 = 40

  1. Write an essay on speciation.
  2. Discuss morphological evidences in favour of the theory of organic evolution.
  3. Trace the chemical origin of life and explain the origin of Eukaryotes.
  4. Illustrate the adaptive radiation in placental mammals.

 

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Loyola College B.Sc. Zoology April 2008 Immunology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

 

TS 16

B.Sc.  DEGREE EXAMINATION –ZOOLOGY

FIFTH SEMESTER – APRIL 2007

ZO 5401 – IMMUNOLOGY

 

 

Date & Time: 04/05/2007 / 1:00 – 4:00          Dept. No.                                                     Max. : 100 Marks

 

 

 

PART – A                                          2 x 10 = 20  Marks

I           Answer ALL the questions.

  1. What is meant by peyers patches?
  2. Explain a lymph node
  3. Comment on bursa of fabricius.
  4. What are macrophages.
  5. What are natural killer cells.
  6. Comment on spleen.
  7. What is diptheria?
  8. What are cyto kins?
  9. Differentiate between innate and acquired immunity.
  10. What are vaccines?

 

 

PART – B                                    4 x 10 = 40 Marks

II         Answer any FOUR of the following

  1. Differentiate B and T lymphocytes.
  2. Explain the different lymphatic organs of man.
  3. Write a note on differentiation of stem cells into different components.

14   What are the antigens of micro organisms.

15   Write a note on monoclonal antibodies.

16   Explain Jerne-plague experiment that explains cell adherence and immunity,

 

 

PART – C                                    2 x 20 = 40 Marks

III        Answer any TWO of the following

 

  1. Write an essay on AIDS and its present status of vaccine to control it.
  2. Write an essay on classification of immunoglobulins.
  3. What is hyper sensitivity and its reactions..

20..Write an essay on immunity against bacterial infections in man.

 

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Loyola College B.Sc. Zoology April 2008 Genetics Question Paper PDF Download

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                LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ZOOLOGY

TS 12

 

FIFTH SEMESTER – APRIL 2007

ZO 5501 – GENETICS

 

 

 

Date & Time: 28/04/2007 / 1:00 – 4:00 Dept. No.                                              Max. : 100 Marks

 

 

PART-A

Answer ALL.                                                                                                            (10×2=20 marks)

 

  1. What are Euthenics, Eugenics and Euphenics.
  2. Give an example for complete linkage.
  3. What are Hfr Cells.
  4. When a normal woman whose father is a colorblind is married to a colorblind man.

Find out the possible colorblind condition in their progeny.

  1. Define the following.
  2. Cistron b. Recon
  3. What is a phage?
  4. Define Amniocentesis.
  5. Find the result of the following crosses.
  6. AO x BO b. AB x OO
  7. Find out the gene frequency of A and a. Where the genotype frequency of ‘a’ is 0.64.
  8. Give the phenotypic and genotypic ratios of a dihybrid Mendelian cross.

 

PART-B

 

Answer any FOUR.                                                                                               (5×8=40 marks)

 

  1. Write a paragraph on Gene Mutations.
  2. Discuss out breeding and its advantages.
  3. Explain the X-linked inheritance with suitable examples.
  4. Define Maternal Inheritance with suitable examples.
  5. What is linkage? Classify types of linkage with examples.
  6. What is non-disjunction? Explain with klinefelter’s syndrome as the example.

PART-C

Answer any TWO.                                                                                        (2×20=40 marks)

 

  1. a. Define Hardy Weinberg’s Law.
  2. Explain in detail the gene and genotype frequencies.
  3. Elaborate the factors affecting HW Law of equilibrium.
  4. Explain in detail the mendel’s laws of inheritance.
  5. Write an essay on multiple alleles with suitable examples.
  6. a. What is human genome project.
  7. Explain in detail the merits and demerits of the project.

 

 

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Loyola College B.Sc. Zoology April 2008 Essentials Of Plant Biology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc.

IB 44

DEGREE EXAMINATION – ADV. ZOOLOGY

SECOND SEMESTER – APRIL 2007

PB 2100/PB 3100 – ESSENTIALS OF PLANT BIOLOGY

 

 

Date & Time: 23/04/2007 / 1:00 – 4:00            Dept. No.                                                     Max. : 100 Marks

 

 

 

Part A                                           (20 marks)

Answer All questions

I Choose the Correct Answer                                                                     ( 5 x 1 = 5 marks)

  1. Match A) hormogonium         B) microspore   C) plectostele        D) conidia with
  1. Lycopodium  ii. Aspergillus             iii. Nostoc        iv. Cycas.
  2. A-iii, B- ii, C-iv, D- i
  3. A-iii, B- iv, C-ii, D-i
  4. A-iii, B- i, C-iv, D –ii
  5. A-iii, B- iv, C-i, D-ii
  6. In Achyranthes aspera the phyllotaxy is
  7. alternate b. opposite decussate
  8. opposite superposed d. whorled
  9. Statement A- Phloem parenchyma is the only living tissue among phloem components

Statement B- It is absent in monocots.

  1. statement A is correct, but statement B is incorrect.
  2. Statement B is correct, but statement A is incorrect
  3. Both A and B are correct
  4. Both A and B are incorrect.
  5. The ovule is bent round like a horse shoe in
  6. orthotropous b. anatropous   c. amphitropous           d. campylotropous
  7. Antibiotic tomatine is obtained from the seeds of ——————.
  8. Vitis vinifera b. Cinnamomum zeylanicum
  9. Pyrus malus d. Lycopersicum esculentum

 

II State whether the following statements are True or False                (5 x 1 = 5 marks)

  1. Marsilea is an aquatic pteridophyte.
  2. According to Bentham and Hooker’s system of classification ,the series bicarpellatae

has 4 orders and 24 families.

  1. Mesophyll is differentiated into palisade tissue and vascular tissue.
  2. Primary endosperm nucleus is haploid in nature.

10.Zingiber officinale dilates blood vessels and thus causes a feeling of warmth.

 

III. Complete the following                                                                     ( 5 x 1 = 5 marks)

  1. Two types of roots namely ———– and ———— roots are seen in Cycas.
  2. Artificial system of classification is also called as —————.
  3. In exarch xylem, ———— lies towards periphery and ———towards centre.
  4. The ubish bodies are present in ————- cells.
  5. The scientific name of turmeric is ——————–.

 

 

 

 

 

 

 

 

 

 

 

  1. Answer all, each in about 50 words ( 5 x 1 = 5 marks)
  2. Write down the systematic position of Lycopodium.
  3. Write short notes on “ Die Naturlichen Pflanzenfamilien”.
  4. Distinguish between radial and collateral vascular bundles.
  5. What is the function of tapetum?
  6. Give the binomial of any two condiments.

 

PART B                       ( 5 x 8 = 40 marks)

 

Answer any five, each within 350 words only. Draw diagrams and flowcharts wherever necessary.

  1. Describe the cell structure of Nostoc. Add a note on its systematic position.
  2. Explain the male sex organs of Funaria.
  3. Describe the process of secondary thickening in dicots.
  4. Bring out the differences between dicot root and monocot root.
  5. Mention the characteristic features of the family Lamiaceae.
  6. Give an illustrated account of the development and organization of the monosporic

type of embryosac.

  1. Give the binomial, family, morphology of useful parts and uses of any two each of

narcotics and edible oil yielding plants.

  1. Write the botanical name, family, morphology of useful parts and uses of Cardamom,

Sandal wood, Sweet flag and Teak.

PART C                       ( 2 x 20 = 40 marks)

 

Answer the following, each within 1500 words only. Draw diagrams and flowcharts wherever necessary.

29 a. Why Puccinia graminis is called heteroecious rust? Explain its life cycle.

OR

  1. What are permanent tissues? How are they classified? Give an account of complex

tissues.

30 a.  Describe the floral characters of the families Caesalpiniaceae and Amaranthaceae

giving floral formula and floral diagrams.

OR

  1. Describe the structure and development of dicot embryo.

 

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Loyola College B.Sc. Zoology April 2008 Environmental Mgmt. And Ecological Methods Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

TS 17

B.Sc. DEGREE EXAMINATION – ZOOLOGY

SIXTH SEMESTER – APRIL 2007

ZO 6600 – ENVIRONMENTAL MGMT.  AND  ECOLOGICAL METHODS

 

 

 

Date & Time : 16.04.2007/9.00-12.00   Dept. No.                                                                     Max. 100 Marks

 

 

Part A                                    (Answer all)                                    10 X 2 = 20

  • Comment on “biological magnification”.
  • Define half life with examples
  • Write a note on “elutriation”.
  • Differentiate exhaustible energy from inexhaustible energy
  • What is ozone hole?
  • Comment on Freons.
  • Write a note on bioconcentration.
  • Comment on radioactive fallout.
  • Write a note on noise pollution.
  • What is Breader’s equation?

 

 

Part B                                                 (Answer any four)                             4 X 10 = 40

 

  • Bring out the ecological effects of radioactive pollution
  • Describe the ill effects of air pollution
  • Explain sampling programme on vertebrate hosts?
  • Bring out the factors affecting the size of relative estimates
  • Bring out the ill effects of contamination of water
  • Describe how population estimation is done for eggs and immobile animals

 

Part C                                                (Answer any two)                            2 X 20 = 40

 

  • Discuss in detail the behavioral methods of extraction.
  • Discuss the importance of inexhaustible energy resource
  • Form an essay on land pollution and its impact
  • Describe the importance of sustainable development

 

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Loyola College B.Sc. Zoology April 2008 Cell Biology Question Paper PDF Download

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                LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ZOOLOGY

TS 11

 

FIFTH SEMESTER – APRIL 2007

ZO 5500 – CELL BIOLOGY

 

 

 

Date & Time: 27/04/2007 / 1:00 – 4:00 Dept. No.                                                Max. : 100 Marks

 

 

 

PART A                                             (Answer all)                           10 x 2 = 20

  1. What is Camera Lucida?
  2. Mention the discoverers of lysosome and nucleus.
  3. Differentiate micron from angstrom units
  4. What is ital staining?
  5. Comment on “suicidal bags of cells”.
  6. What is a nucleoid?
  7. Define heterochromatin.
  8. Mitochondrion is the power house of the cell – Justify.
  9. What are chromosomal puffs?
  10. What are SEM and TEM?

 

PART B                                             (Answer any four)                             4 x 10 = 40

  1. Explain the principle involved in compound microscopy.
  2. Describe polymorphism in lysosomes.
  3. Explain the double helical model of DNA.
  4. Write notes on giant chromosomes.
  5. Describe the structure of golgi complex.
  6. Elucidate the fluid mosaic model of membranes.

 

PART C                                             (Answer any two)                              2 x 20 = 40

  1. Write an essay on cytology of cancer.
  2. Enumerate the colloidal properties of protoplasm.
  3. Describe biosynthesis of proteins.
  4. With suitable diagrams describe the structure of nucleus and nucleolus.

 

 

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Loyola College B.Sc. Zoology April 2008 Biotechnology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc.

TS 13

DEGREE EXAMINATION –ZOOLOGY

FIFTH SEMESTER – APRIL 2007

ZO 5502 – BIOTECHNOLOGY

 

 

Date & Time: 30/04/2007 / 1:00 – 4:00          Dept. No.                                                     Max. : 100 Marks

 

 

 

 

Part A                                                (Answer all )                                   10 X 2 = 20

  1. What is amniocentesis?
  2. Comment ton Biomining
  3. Write a note on B Lymphocytes
  4. What are cosmids?
  5. Differentiate prokaryotes from eukaryotes
  6. Comment on ‘Gene therapy’
  7. What are interferons?
  8. What are restriction enzymes?
  9. Write a note on plasmid amplification
  10. Comment on bioconversion

Part B                                                 (Answer any four)                             4 X 10 = 40

  1. Bring out he protocol pertaining to Indirect cloning
  2. Bring out the characteristics of primary cell lines and established cell lines
  3. How biotechnology in helpful for pollution abatement?
  4. Describe about the commercially important microbial products
  5. Bring out the advantages of animal tissue culture
  6. Explain the role of Genetic Engineering in Agriculture

Part C                                                 (Answer any two)                              2 X 20 = 40

  1. Form an essay on the role of Biotechnology in health care
  2. form an essay on Intellectual Property Rights
  3. Discuss about the recent trends in Biotechnology
  4. Form an essay on Hybridoma Technology

 

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Loyola College B.Sc. Zoology April 2008 Acquaculture Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

TS 43

B.Sc.  DEGREE EXAMINATION – ZOOLOGY

SIXTH SEMESTER – APRIL 2007

Z 618 – ACQUACULTURE

 

 

Date & Time: 28/04/2007 / 1:00 –  4:00         Dept. No.                                                     Max. : 100 Marks

 

 

Part A                                                (Answer all)                                    10 x 2 = 20

  1. What are major carps?
  2. Differentiate acclimatization from acclimation.
  3. What do you mean by shell fishery?
  4. Give the scientific name of silver carp and grass carp.
  5. What is sullage?
  6. What is biological oxygen demand?
  7. Define spawning.
  8. Define lake.
  9. Mention any two indigenous cold water fishes.
  10. Write a note on Adyar estuary?

 

Part B                                                (Answer any four)                                     4 x 10 = 40

  1. Write notes on fishery of the Chilka Lake.
  2. Explain Elasmobranch fishery.
  3. Write notes on sardines and mackerels.
  4. Explain the relationship between fish catch, mortality and population of fish.
  5. Briefly explain exotic fishes.
  6. Write notes on composite fish culture.

 

Part C                                                (Answer any two)                          2 x 20 = 40

  1. Write an essay on aquatic weeds and their control.
  2. Discuss induced breeding.
  3. Explain the fishing crafts and gear.
  4. Elaborate poisonous fishes and poison glands.

 

 

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Loyola College B.Sc. Zoology April 2008 Organic Evolution Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ZOOLOGY

DE 38

 

SIXTH SEMESTER – APRIL 2008

Z 615 – ORGANIC EVOLUTION

 

 

 

Date : 26/04/2008                Dept. No.                                        Max. : 100 Marks

Time :  1:00 – 4:00

SECTION-A

Answer all question                                                                             10 x 2 = 20

1.Define the term homologous organ. Give one example.

2.What do you mean by coprolites?

3.Write down any four vestigial organs in man.

4.Define ‘Biogenetic law’

  1. Distinguish organic evolution from inorganic evolution.

6.Mention the contributions of Hugo de Vries.

7.Comment on Eohippus.

8.Define Germplasm theory.

9.Chaemeleon is an arboreal animal-Justify.

10.What is Batesian mimicry?

SECTION-B

Answer any Four                                                                                          4 x 10 =40

  1. Write notes on animal colouration.

12.Explain analogy with two examples

13.Describe Darwinism.

14.List down the summary of events in the evolution of modern horse Equus.

15.Write notes on zoogeographical realms.

16.Explain evolutionary convergence and parallelism.

SECTION-C

Answer any Two                                                                                           2 x 20 = 40

17.Elaborate Lamarckian principles and Neo-Lamarckism.

  1. Write an essay on the role of isolating mechanisms.

19.Trace evidences from physiology and biochemistry in favour of the theory of organic

evolution.

20.Discuss chemical origin of life.

 

 

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Loyola College B.Sc. Zoology April 2008 Aquaculture Question Paper PDF Download

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DE 39

 

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc DEGREE EXAMINATION – ZOOLOGY

SIXTH SEMESTER – APRIL 2008

Z 651/ Z618 AQUACULTURE

 

 

 

Date : 29/04/2008                Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

Section-A

Answer all question                                                                                                   10×2=20

  1. What is aquaculture?
  2. Differentiate acclimatization from acclimation.
  3. What is shell fishery?
  4. What is sullage?
  5. Define lake.
  6. Mention the gases in the air bladder.
  7. Draw and label a placoid scale.
  8. What are minor and major carps?
  9. Define spawning.
  10. Give the scientific names of Gangetic eel and Hammer headed shark.

 

Section-B

Answer any FOUR                                                                                                   4×10=40

  1. Briefly explain exotic fishes.
  2. Explain Elasmobranch fishery.
  3. Write notes on sardines and mackerels.
  4. Explain Weberian ossicles.
  5. Write notes on electric organs in fishes
  6. Write notes on ultimobranchial glands.

 

Section-C

Answer any TWO                                                                                                     2×20=40

  1. Write an essay on aquatic weeds and their control.
  2. Explain induced breeding.
  3. Categorise the fishing crafts and gear.
  4. Elaborate composite fish culture.

 

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Loyola College B.Sc. Zoology Nov 2010 General Microbiology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

   B.Sc. DEGREE EXAMINATION – CHEMISTRY & ADV. ZOOLOGY

THIRD SEMESTER – NOVEMBER 2010

    PB 3206 / 3200 – GENERAL MICROBIOLOGY

 

 

 

Date : 12-11-10                     Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

PART A (20 marks)

 

Answer all questions.

 

  1. Choose the correct answer: (5 x 1 = 5)

 

  1. Which of the following is an example for brown algae?
  2. a) Chlorella b) Chlamydomonas     c) Ectocarpus              d) Polysiphonia
  3. Pili represent
  4. Extrachromosomal genetic element   b)  protoplasmic outgrowth of donor cells
  5. c) small flagella   d)  special bacterial cilia
  6. High frequency recombination cells arise when
  7. a) they have multiple F plasmids
  8. b) F plasmid has been incorporated into the bacterial chromosome
  9. c) conjugation and transformation happen at the same time
  10. d) bacterial chromosomes do not break during conjugation
  11. Name the pathogen that cause little leaf of brinjal:
  12. a) Pseudomonas b) TMV                        c) CMV                                                d) Mycoplasma
  13. Wastewater is characterized by a very low value of
  14. a) turbidity b) BOD                        c) dissolved oxygen                 d) dissolved organics

 

  1. State whether the following statements are true or false: (5 x 1 = 5)

 

  1. Fungal cell wall is made of chitin.
  2. Nutrient Agar medium is suitable for the cultivation of heterotrophic bacteria.
  3. In transformation, the genetic material is transferred through bacteriophage.
  4. Xanthomonas citri is a gram positive rod shaped bacterium.
  5. Spoilage of meat by microbes can be prevented by storage at -20°C.

 

III. Complete the following:                                                                                                                   ( 5 x 1  = 5 )

 

  1. The reserve food material in red algae is ________.
  2. Bacteria which grow at very low temperatures are called _______.
  3. Transfer of genetic material between cells by physical contact is called _______.
  4. The host where the uredinal stage of Puccinia is seen is __________.
  5. The organism used in the production of wine is _____________.

 

 

 

  1. Answer the following, each in about 50 words: (5 x 1= 5)

 

  1. What are complex viruses?
  2. Define organolithotrophs.
  3. What are Okazaki fragments?
  4. Give the composition of Bordeaux mixture.
  5. What is pasteurization?

 

PART  B

 

Answer the following, each answer not exceeding 350 words. Draw diagrams wherever necessary:                                                                                                                                                                           (5 x 7= 35)

 

  1. List out the salient features of microalgae.

(or)

  1. Give an account of the characteristic features of fungi.
  2. Explain briefly about the development of endospore.

(or)

  1. Write notes on the methods used for quantification of microorganisms.
  2. Discuss briefly about the process of conjugation.

(or)

  1. Give an account of gene regulation in bacteria.
  2. Write short notes on citrus canker and its control.

(or)

  1. Explain briefly about Tobacco mosaic disease.
  2. Give an account of Cheese production.

(or)

  1. Write short notes on microbial enzymes.

 

PART C

 

Answer any three of the following, each answer not exceeding 1200 words. Draw diagrams wherever necessary:                                                                                                                                                      (3 x 15= 45)

 

  1. Discuss in detail about the salient features of viruses and their classification.
  2. Write detailed notes on the ultrastructure of a bacterial cell.
  3. Give a detailed account of a) transformation and b) transduction.
  4. Explain about the symptoms, pathogen, disease cycle and control of Black rust disease in wheat.
  5. Explain in detail about the processes involved in the treatment of domestic wastewater.

 

 

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Loyola College B.Sc. Zoology Nov 2012 General Microbiology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ADV. ZOOLOGY & CHEMISTRY

THIRD SEMESTER – NOVEMBER 2012

PB 3206 – GENERAL MICROBIOLOGY

 

 

Date : 09/11/2012             Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

Part – A

 

Answer the following, each within 50 words:                                                                     (10 x 2 = 20)

 

  1. Distinguish between Gram positive and Gram negative bacteria.
  2. Write a short note on Biotecton.
  3. What are pili?
  4. What is DHA? Write a note on DHA.
  5. What are the chemical components of bacterial cell wall?
  6. Give the types of nutrient media for microbial culture.
  7. What are fimbriae?
  8. Define gene expression.
  9. Mention the pathogens of Citrus canker and rust of Wheat.
  10. What are vaccines?

 

Part – B

Answer the following, each within 500 words. Draw diagrams wherever necessary:           (5 x 7 = 35)

 

11(a). Briefly describe the phenotypic classification system of bacteria.

(OR)

(b). Enumerate the physical properties of viruses.

 

12(a). Describe Carbon and Sulphur cycles.

(OR)

(b). Briefly explain the biological treatment of sewage water.

 

13(a). Give the structure and function of flagella in microbes.

(OR)

(b). What are pure cultures of microbes? Provide the methods of their maintenance.

 

14(a). Briefly describe conjugation in bacteria.

(OR)

(b). Give a short account on little leaf disease of brinjal.

 

15(a). Discuss the types of microbial food spoilage and the methods of food preservation.

(OR)

(b). Enumerate the microbial enzymes with their commercial applications.

 

 

 

 

Part – C

Answer any three of the following, each within 1200 words. Draw diagrams wherever necessary:                                                                                                                                                                                                                               (3 x 15 = 45)

 

  1. Elaborately discuss the importance of microalgae in changing the science fields.

 

  1. Explain the physical and chemical processes of sewage water treatment.

 

  1. Describe microbial growth in batch culture. Add a note on the methods of its measurement.

 

  1. Write the pathogen, symptoms and control measures of Tobacco Mosaic Viral disease.

 

  1. Define transduction. Describe in detail specialized transduction.

 

 

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