B.Sc Corporate Plant Biology and Biotechnology Question Paper 2012

Loyola College B.Sc. Plant Biology and Biotechnology April 2011 Cell Biology And Anatomy Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

THIRD SEMESTER – APRIL 2011

PB 3508/PB 4505 – CELL BIOLOGY AND ANATOMY

 

 

 

Date : 25-04-2011              Dept. No.                                                  Max. : 100 Marks

Time : 1:00 – 4:00

 

PART – A (20 MARKS)

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

 

  1. The annular diaphragm is present in the microscope
  2. Phase contrast b) Compound           c) Fluorescent          d) Dark – field
  3. Anisocytic stomata is seen in
  4. Hibiscus             b) Solanum               c) Ixora                       d) Oryza
  5. The nongranular peripheral part of cytoplasm is known as
  6. hyaloplasm b) endoplasm            c) ectoplasm              d) kinoplasm
  7. The minute particles present in mitochondrian outer membrane are called:
  8. Glyoxysomes b) Peroxisomes                    c) Lysosomes            d) Oxysomes
  9. Cork cambium is an example of meristem:
  10. Lateral             b) Primary                  c) Apical                    d) Intercalary

 

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

 

  1. Raphide is a non-protoplasmic cell inclusion.
  2. The mesophyll tissue is undifferentiated in dorsiventral leaves.
  3. The main axis of Lampbrush chromosome contains a series of thickenings called chromomeres.
  4. Lysosomes originate from golgi bodies.
  5. In a dark field microscope, the light intensity is controlled by iris diaphragm.

 

  • Complete the following (5 x 1 = 5)

 

  1. The Tunica – corpus theory was proposed by ________________.
  2. The tips of chromosomes are called ______________.
  3. Vascular bundles are collateral and closed in the stems of ____________.
  4. Cystolith is made up of ____________.
  5. Proteins are synthesized by the cell organelles called ________________.

 

 

 

  1. Answer the following each within 50 words                                                      (5 x 1 = 5)

 

  1. State the principles of Light microscope.
  2. Define Cell theory.
  3. What are Lenticels?
  4. Comment on phagocytosis and pinocytosis.
  5. What are peroxisomes?

 

PART – B

Answer any FIVE of the following, each in about 350 words.

Draw necessary diagrams.                                                                                      (5 x 7 = 35 marks)

 

  1. a) Briefly describe the working principle of fluorescent microscope.

(OR)

  1. Describe the ultra structure and function of endoplasmic reticulum.

 

  1. a) Give an account of the various stages of mitosis.

(OR)

  1. b) Describe briefly the theories on Apical meristem.

 

  1. a) Describe the chemical composition of Nucleus.

(OR)

  1. b) Write short notes on cell cycle.

 

  1. a) Discuss about meristematic tissues.

(OR)

  1. b) Write notes on the ultra structure of plant cell wall and its chemical composition.

 

  1. a) Describe the structure of Achyranthes root.

(OR)

  1. b) Discuss the structure of Dracaena

 

PART – C

 

Answer any THREE of the following, each within 1,200 words.  Draw necessary diagrams.

(3 x 15 = 45 marks)

  1. Explain the structure, working principles and components of Transmission Electron

Microscope.

  1. Discuss in detail about the various stages of meiosis. Add a note on its significance.
  2. Explain the structure of vascular tissues.
  3. Compare the anatomy of dorsiventral and Isobilateral leaves.
  4. Explain the ultra structure, chemical composition and function of mitochondria.

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2011 Angiosperm Taxonomy, Eco.Botany & Embryology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

THIRD SEMESTER – APRIL 2011

PB 3506/PB 3502 – ANGIOSPERM TAXONOMY, ECO.BOTANY & EMBRYOLOGY

 

 

 

Date : 12-04-2011              Dept. No.                                                    Max. : 100 Marks

Time : 1:00 – 4:00

 

PART- A (20 MARKS)

Answer ALL Questions

I  Choose The Correct Answer                                                                                    ( 5X1=5)

  1. Gynophore is absent in:
  2. Capparis               Cadaba                                c. Creteva          d. Cleome
  3. Linnaeus classification is based on_________ characters:
  4. Fruit Molecular   c. Sexual    d. Vegetative
  5. Tapetum is a _________ tissue:
  6. Nutritive                 Generative                           c. Protective                d. Vascular
  7. Crocus sativus is commonly known as:
  8. Turmeric                          Cumin                       c. Bay leaf        d. Saffron
  9. Tetra- hydra cannabinol is present in:
  10. Cocoa       Opium                     c. Ganja                       d. Datura

II State whether the following statements are true or false:                                                (5×1=5)

  1. Thalamiflorae is placed under subclass Gamopetalae.
  2. Trilocular syncarpous ovary is a characteristic feature of Euphorbiaceae.
  3. Spur in Orchidaceae is a modification of labellum.
  4. Heterostyly facilitates cross pollination.
  5. Finger millet is botanically known as Eleusine corocana.

 

III  Complete the following:                                                                                                       (5×1=5)

 

  1. Misidentification of names by an author is cited as ______________
  2. Monophyletic taxa are derived from ____________________
  3. Seedless fruits develop due to _________________________
  4. Capscisin is found in ___________________________
  5. Binomial of Sal is ___________________________________

 

  1. Answer the following, in fifty words each:                                                    (5×1=5)

           

  1. What is phylogenetic system of Classification?
  2. Give any four requirements for Valid publication.
  3. Write the difference between cereals and millets.
  4. List the features of Moth pollinated flowers.
  5. What are the medicinal uses of Belladona?

PART – B

Answer the follwing each within 350 words,. Draw diagrams wherever necessary

                                                                                                                                              (5×7=35)

  1. a) Explain the techniques involved in Molecular Systematics.

(OR)

  1. b) What are the different types of keys? How do you write a good and effective key?

 

  1. a) List the economically important plants with binomial name and uses in the family Solanaceae.

(OR)

  1. b) Write the salient features of the family Orchidaceae with necessary illustrations.
  2. a) What are pulses? Write the scientific name, family and morphology of useful part of three pulses.

(OR)

  1. b) What are the medicinal uses of Indian periwinkle, Sweet flag and Asafoetida

 

  1. a) Describe microsporogenesis with illustrations.

(OR)

  1. b) Give an account of modes of cross pollination.
  2. a) Describe the process of double fertilization.

 

(OR)

  1. b) Explain any two types of endosperms.

PART –C

Answer any three Questions. Each answer with in 1500 words, draw the diagrams wherever necessary.                                                                  (3×15=45)     

  1. Discuss the usefulness of Biochemical tools in classification
  2. Describe the vegetative, floral and fruit features of the family Cucurbitaceae. List any ten plants of economic importance from this family.
  3. Define essential oils. Discuss the three different sources of essential oils you have studied.
  4. Explain the structure and trace the development of Polygonum type of female gametophyte.
  5. What are the various development stages of Dicot embryo?. How does it differ from that of Monocot embryo?

 

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Loyola College B.Sc. Plant Biology and Biotechnology Nov 2011 Physics For Biology Question Paper PDF Download

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Principles Of Horticulture Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIRST SEMESTER – APRIL 2012

PB 1507/PB 1504 – PRINCIPLES OF HORTICULTURE

 

 

 

Date : 02-05-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

PART – A

 

Answer all the questions, each answer within 50 words only:                              (10 x 2 =20 Marks)

 

  1. Define Olericulture.
  2. Mention the advantages of Pruning
  3. What is mist chamber?
  4. How will you select a pot?
  5. What is a Pergola?
  6. Give the principle of a Bottle Garden.
  7. Define transplanting with an example.
  8. State two advantages of mulching
  9. Define Ikebana.
  10. What are cut flowers?

 

PART – B

 

Answer the following questions, each answer within 500 words;

 Draw diagrams wherever necessary:                                                                    (5x 7 = 35 Marks)

 

  1. (a) Name any three garden implements and their uses.

(or)

(b) Describe any two famous gardens of India.

 

  1. (a) Explain the mechanism of Potting and Repotting.

(or)

(b) Discuss the process and importance of  Vermicomposting.

 

  1. (a) Write briefly on Terrace Gardening.

(or)

(b) Describe the parts of a garden.

 

  1. (a) Comment on any three garden operations.

(or)

(b) Write short notes on Garlands.

 

  1. (a) How will you prolong the vase life of cut flowers?

(or)

(b) Describe the different methods of flower arrangement.

 

 

 

 

 

PART – C

 

Answer any THREE of the following questions, each answer not exceeding 1200 words;

Draw diagrams wherever necessary:                                                                         (3 x 15 = 45 Marks)

 

  1. Write an essay on Hydroponics.

 

  1. Discuss the art of Bonsai.

 

  1. Describe the cultural practices of Jasmine and Rose.

 

  1. Explain the methods of vegetative propagation.

 

  1. Describe Floral bouquets and Hair decoration

 

 

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Principles Of Horticulture Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIRST SEMESTER – APRIL 2012

PB 1507/PB 1504 – PRINCIPLES OF HORTICULTURE

 

 

 

Date : 02-05-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

PART – A

 

Answer all the questions, each answer within 50 words only:                  (10 x 2 =20 Marks)

 

  1. Define Olericulture.
  2. Mention the advantages of Pruning
  3. What is mist chamber?
  4. How will you select a pot?
  5. What is a Pergola?
  6. Give the principle of a Bottle Garden.
  7. Define transplanting with an example.
  8. State two advantages of mulching
  9. Define Ikebana.
  10. What are cut flowers?

 

PART – B

 

Answer the following questions, each answer within 500 words;

 Draw diagrams wherever necessary:                                                                  (5x 7 = 35 Marks)

 

  1. (a) Name any three garden implements and their uses.

(or)

(b) Describe any two famous gardens of India

 

  1. (a) Explain the mechanism of Potting and Repotting.

(or)

(b) Discuss the process and importance of Vermicomposting.

 

  1. (a) Write briefly on Terrace Gardening.

(or)

(b) Describe the parts of a garden.

 

  1. (a) Comment on any three garden operations.

(or)

(b) Write short notes on Garlands.

 

  1. (a) How will you prolong the vase life of cut flowers?

(or)

(b) Describe the different methods of flower arrangement.

PART – C

 

Answer any THREE of the following questions, each answer not exceeding 1200 words;

Draw diagrams wherever necessary:                                                                 (3 x 15 = 45 Marks)

 

  1. Write an essay on Hydroponics.

 

  1. Discuss the art of Bonsai.

 

  1. Describe the cultural practices of Jasmine and Rose.

 

  1. Explain the methods of vegetative propagation.

 

  1. Describe Floral bouquets and Hair decoration.

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Principles Of Agriculture Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIFTH SEMESTER – APRIL 2012

PB 5409 – PRINCIPLES OF AGRICULTURE

 

 

Date : 27-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

Part A

 

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

 

  1. Define Agriculture?
  2. Enumerate the climatic factors involved in crop growth.
  3. What is water-logged soil?
  4. Write any two water use efficiencies in relation to crop production.
  5. Define organic farming.
  6. What is the role of nitrogen fertilizers?
  7. Mention any four implements and their uses.
  8. Distinguish between inter cropping and inter planting.
  9. What do you meant by agricultural extension programme?
  10. Define Botanical pesticides. Give two examples.

 

 

PART B

 

Answer the following, each answer within 500 words. Draw diagrams wherever necessary:

            (5 x7 = 35 marks)

  1. a) Discuss the role of Agriculture in India

(or)

 

  1. b) Highlight the impacts of changing environment in crop production.

 

  1. a) Give a brief account on the criteria’s for scheduling irrigations in crop production.

(or)

 

  1. b) Distinguish between Drip and Sprinkler irrigation.

 

13.a) Write notes on chemical and biological properties of soil.

(or)

  1. b) Explain the role of soil nutrients in Agriculture.

14 a). Describe the methodology of seed bed preparation.

(or)

b). Explain the agronomic practices followed in sugarcane cultivation.

 

15 a). What is a weed? Mention its characteristic features.

(or)

b). Explain the importance of integrated pest management.

 

 

Part C

 

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

 

 

  1. Explain the modern methods of crop cultivation.
  2. Discuss the effect of industrial effluents on soil and water.
  3. Classify the Indian soils and discuss their role in maintaining soil productivity.
  4. Write notes on: a. intercultivation b. crop rotation c. mixed cropping
  5. Give an account on various control measures to protect crops from pest.

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Plant Physiology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIFTH SEMESTER – APRIL 2012

PB 5515/PB 5509/PB 5500 – PLANT PHYSIOLOGY

 

 

 

Date : 25-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

PART A

 

Answer the following, each in about 50 words:                                             (10 x 2 = 20 marks)

  1. Define the second law of thermodynamics.
  2. Comment on antitranspirant.
  3. What is an essential element?
  4. Define Donnan’s equilibrium.
  5. What are CAM plants?
  6. What do you mean by photo synthetic phosphorylation?
  7. Define the chemiosmotic hypothesis.
  8. Define cellular oxidation.
  9. What is water stress?
  10. Define the term ‘dormanul’.

PART B                                                        

Answer the following, each within 500 words;

Draw diagrams wherever necessary:                                                               (5×7=35 marks)

  1. a) Define water potential. Explain its components and bring out their relationships.

(OR)

  1. b) Explain how K+ ions regulate the opening and closing of stomata.
  2. a) What is active absorption of mineral ions? Explain any one concept of active absorption

of mineral ions.

(OR)

  1.   b) What is passive absorption of mineral ions? Explain any one concept for passive

absorption of mineral ions.

  1. a) Schematically represent the photorespiration, explain the important steps and the

significance of photorespiration.

(OR)

  1. b) Schematically represent the light reaction and mention its importance.

 

 

  1. a) Explain the mechanism of biological nitrogen fixation.

(OR)

  1. b) Explain the various sources of nitrogen and the synthesis of amino acids.
  2. a) What is bioassay? Explain any one bioassay for auxin and any one for gibberellins.

(OR)

  1. Discuss the physiological roles of ethylene.

PART C                                

Answer any THREE of the following, each within 1200 words only;

Draw diagrams and flowcharts wherever necessary:                                      (3×15=45 marks)

 

  1. Describe the path of water from the soil to the atmosphere.
  2. Describe the function, deficiency symptoms and remedial measures of any four macro and

any four micro nutrients.

  1. Explain how CO2 is fixed in a C3 plant. Bring out the differences between C3 and C4 plants.
  2. Explain the oxidation of glucose molecule by aerobic respiration.
  3. Write an essay on physiology of flowering.

 

 

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Plant DIVersity – II(Pteri.,Gymno.,& Paleobot.) Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

SECOND SEMESTER – APRIL 2012

PB 2504/PB 2502/PB 2500 – PLANT DIVERSITY – II(PTERI.,GYMNO.,& PALEOBOT.)

 

 

 

Date : 16-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

PART – A

 

Answer the following , each in about 50 words:                                           (10 x 2 = 20 marks)

 

  1. Distinguish between Apospory and Apogamy.
  2. Define Amphiphloic siphonostele.
  3. Explain Heterospory with example.
  4. Give any two economic importance of Pteridophytes.
  5. Mention any two characters of  Gnetales.
  6. List any two important features of Bennettitales.
  7. What is Transfusion tissue?
  8.  What is dwarf shoot?
  9.  Define fossilization.
  10.  What is Geological time scale?

 

PART – B

 

Answer the following, each answer not exceeding 500 words:           (5 x 7 = 35 marks)

Draw diagrams wherever necessary:

 

  1. a) Write short notes on Eusporangium and Leptosporangium.

(OR)

  1. b) Briefly outline the classification of Pteridophytes proposed by Reimer.

 

  1. a) Describe the strobilus of Lycopodium.

(OR)

  1. b) Describe the cone of

 

  1. a) Give an account on general characters of Gymnosperms.

(OR)

  1. b) Bring out the salient features of coniferales.

 

  1. a) Explain the structure of female cone of Pinus.

(OR)

  1. b) Describe the female strobilus of

 

  1. a) Explain the different types of fossils.

(OR)

  1. b) Write short notes on

 

PART – C

 

Answer any three of the following, each answer not exceeding 1200 words:

Draw diagrams wherever necessary:                                                    (3 x 15 = 45 marks)

 

  1. Write an account on stelar evolution in Pteridophytes.
  2. Write a brief account on morphology & reproduction in Marsilea.
  3. Write short notes on (i)   Affinities of gymnosperms with angiosperms.

(ii)  Cycadales

  1. Describe the male and female cone of Cycas.
  2. Write notes on (i) Lepidodendron

(ii) Williamsonia

 

 

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Plant Diseases And Management Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

U.G. DEGREE EXAMINATION – PLANT BIOLOGY & BIOTECHNOLOGY

SIXTH SEMESTER – APRIL 2012

PB 6608/PB 6604 – PLANT DISEASES AND MANAGEMENT

 

 

 

Date : 16-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

PART – A     

 

Answer the following each in about 50 words:                                                               (10 x 2 = 20)

 

  1. Define infection.
  2. What is meant by secondary inoculums?
  3. What are phytoalexins?
  4. What is hypersensitivity.                                             
  5. Write about the causal organism for Club root of cabbage.
  6. What is Acervulus?
  7. Name the pathogen and control measure for Blight of rice.
  8. Write notes on galls.
  9. Give the composition of Bordeaux mixture.
  10. What is meant by Field sanitation?

 

PART – B

 

Answer the following each answer not exceeding 500 words:

Draw diagrams wherever necessary:                                                                               (5 x 7 = 35)

 

 

  1. a. Discuss the role of growth regulators in the development of plant disease.

(or)

  1. Explain Koch’s postulates.

 

  1. a. Discuss the role of light and temperature in disease development.

(or)

  1. Write notes on:

(i)   Natural openings

(ii)  Deposition of gums

 

  1. a. Write an account on Tikka disease of groundnut.

(or)

  1. Describe briefly about the disease caused by Puccinia graminis tritici.

 

  1. a. Briefly describe any one viral disease you have studied.

(or)

  1. Write short notes on Cuscuta.

 

  1. a. Give an account of quarantine regulations.

(or)

  1. Explain soil and seed treatment for eradication of plant diseases.

 

PART – C     

 

Answer any three of the following each answer not exceeding 1200 words.

Draw diagrams wherever necessary.                                                                                (3 x 15 = 45)

 

 

  1. Describe the morphological and anatomical changes in the host plant due to pathogenesis.
  2. Give a detailed account on Induced histological defence mechanism.
  3. Discuss in detail about Blast of rice.
  4. Explain the pathogen, symptoms and control measures of Citrus canker.
  5. Write an essay on the biological control of plant diseases.

 

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Plant Biotechnology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIFTH SEMESTER – APRIL 2012

PB 5518/PB 5512/PB 5504 – PLANT BIOTECHNOLOGY

 

 

 

Date : 03-05-2012              Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

                                                                   PART –A                                  

 

Answer ALL questions;  Each within 50 words only:                                    (10×2=20marks)

 

  1. Define biotechnology.
  2. What is Aseptic condition?
  3. Define Caulogenesis.
  4. What is a Fusogen?
  5. What are nif genes?
  6. What is T-DNA?
  7. What are cloning vectors?
  8. What are Microprojectiles?
  9. Give the use of npt II gene.
  10. What are cry genes?

     PART –B                                  

 

Answer the following each in 500 words only;

Draw diagrams and flow charts wherever necessary:                                    (5×7=35 marks)

 

  1. a) Give a brief account on sterilization methods.

(OR)

  1. b) Write short note on media composition.

 

  1. a) Describe the procedure used for embryo culture.

(OR)

  1. b) Give an account on somatic embryogenesis.

 

  1. a) Explain the genetic organisation of mitochondrial DNA.

(OR)

  1. b) Give a brief note on cytoplasmic male sterility.

 

  1. a) Describe various cloning vectors.

(OR)

  1. b)  Write short note on any one blotting technique.

 

  1. a) Give the strategies used for the development of transgenic plants against herbicides.

(OR)

  1. b) Write briefly on genome mapping.

 

 

 

 

   PART –C                         

 

Answer ANY THREE of the following, each within 1200 words only;       (3 x 15 = 45 marks)

Draw diagrams and flow charts wherever necessary:

 

  1. Explain in detail on cell and suspension culture. Add a note on its applications.
  2. Write a detailed account on meristem culture. Add a note on its importance in the field

of agriculture.

  1. Write an essay on Agrobacterium mediated gene transformation.
  2. Describe in detail on various direct gene delivery methods.
  3. Give a detailed account on molecular markers.

 

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Physics For Biology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & BIO TECH.

THIRD SEMESTER – APRIL 2012

PH 3204 – PHYSICS FOR BIOLOGY

 

 

 

Date : 02-05-2012              Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

PART – A

Answer ALL questions:                                                                                                               (10×2=20)

  1. State the significance of Reynold’s number of a liquid.
  2. Define coefficient of viscosity and write its unit
  3. What are cofactors? Name any one.
  4. Define ‘range’ and ‘stopping potential’ of an alpha particle
  5. Differentiate between diffusion and osmosis
  6. Define the resolving power of a microscope
  7. What are transducers?
  8. What are structure borne noises? How can it be insulated?
  9. What is meant by photosynthesis?
  10. What is linear magnification?

PART – B

Answer any FOUR questions:                                                                                               (4×7.5 = 30)

 

  1. Define induced radioactivity with example. Describe how radio carbon is used in age estimation or dating.
  2. Explain the working of a piezo-electric oscillator.
  3. Describe in detail the carbon fixation cycle.
  4. Give a detailed account of biosensors.
  5. Write in detail, the molecular theory of surface tension

PART – C

Answer any FOUR questions:                                                                                               (4×12.5 =50)

  1. Derive Poiseuille’s formula for the flow of liquid through a capillary tube
  2. (i) Discuss the energies of beta decay.

(ii) Explain the uses of radio isotopes.

  1. Explain with neat circuit diagram, the working of a magnetostrition oscillator and Galton whistle.
  2. Give a detailed account on temperature and pressure transducers.
  3. Explain the Kreb’s cycle in detail with all the intermediate steps.

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Microbiology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FOURTH SEMESTER – APRIL 2012

PB 4508/PB 4504 – MICROBIOLOGY

 

 

 

Date : 21-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

PART-A

 

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

 

  1. Write the Accomplishments of Anton Van Leeuwenhoek.
  2. Define Tyndallization.
  3. What is meant by Lophotrichous Flagella? Give example.
  4. What are Chemotrophs?
  5. Define Fermentation.
  6. What is Transformation?
  7. What are Viroids?
  8. What is a Capsid?
  9. List the uses of Vinegar
  10. Define Rhizosphere.

 

PART-B

 

Answer the following within 500 words. Draw diagrams wherever necessary:           (5X7=35 marks)

 

  1.  a) Give an account on Gram’s Staining.

(OR)

  1. b) Explain the contributions of Louis Pasteur.

 

  1.  a) Write short notes on Bacterial growth curve.

(OR)

  1. b) Briefly explain the methods of pure culture isolation.

 

  1. a) With a neat diagram, explain the process of Conjugation.

(OR)

  1. b) Explain the steps involved in gene cloning.

 

  1. a) Write notes on cultivation of viruses.

(OR)

  1. b) Give an account on the general characteristics of viruses.

 

  1. a) Explain briefly about the industrial production of Penicillin.

(OR)

  1. b) Write notes on Sulphur Cycle.

 

 

PART-C

 

 

Answer any THREE of the following, each with 1200 words:

Draw  diagrams wherever necessary:                                                                     (3X15=45 marks)

 

 

  1. Explain in detail about the major characteristics of microorganisms.
  2. Give a detailed account on the methods to quantitatively measure the bacterial growth.
  3. Describe in detail the process of Transduction.
  4. With a neat diagram, explain the ultra structure of T even Bacteriophage. Also add a note

on the lytic cycle.

  1. Write short notes on:
  2. a) Aerobic sewage treatment processes. (10 marks)
  3. b) Methods to preserve fermented food. (5 marks)

 

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Microbial Biotechnology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FOURTH SEMESTER – APRIL 2012

PB 4210 – MICROBIAL BIOTECHNOLOGY

 

 

Date : 19-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

Part A

 

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

  1. What is gene library?
  2. Define plasmids.
  3. What is trophophase?
  4. Define transformation
  5. Mention about Koji fermentation process.
  6. Mention the nutritional status of SCPs.
  7. What are biopesticides?
  8. What is yoghurt?
  9. Define exopolymers.
  10. Distinguish between batch and continuous culture.

Part B

 

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

 

  1. (a) Explain briefly the polymerase chain reaction.

(or)

(b) Write short notes on restriction enzymes.

 

  1. (a) Discuss the chronological development of the fermentation industries.

(or)

(b) Schematically represent the strategies of down- stream processing.

 

  1. (a) Give the outline only of insulin production.

(or)

(b) Comment on the transformation of steroids.

 

  1. (a) Define vaccine. Explain the production Hepatitis – B vaccine.

(or)

(b) Explain the production of proteases.

 

  1. (a) Write briefly on the fermentation of L – Glutamic acid.

(or)

(b) How beer is produced industrially?

 

 

 

 

 

Part C

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

 

  1. Explain Southern blot technique.
  2. Explain the range of products and the component parts of a fermentation process.
  3. Discuss the production strategy of Streptomycin.
  4. What are biosensors? Explain briefly their working principle, types and application.
  5. Describe how Spirulina is mass cultivated.

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Medical Microbiology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIFTH SEMESTER – APRIL 2012

PB 5405 – MEDICAL MICROBIOLOGY

 

 

Date : 27-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

 

Part – A

 

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

 

  1. Distinguish between moist heat and dry heat sterilization.
  2. Bring out the features of Koch postulates.
  3. Give the significance of β-lactam ring.
  4. Comment on phenol co-efficient test.
  5. Write short notes on Gnotobiotics.
  6. What are toxoids? Give example.
  7. Write about the causative agents of Histoplasmosis.
  8. Give salient features of HB vaccine.
  9. Write about the causative agents of dermatophytoses.
  10. Give the chemistry of tetanus toxins.

 

Part – B

 

Answer the following, each answer  within 500 words.  Draw diagrams wherever necessary:

         (5 x 7 = 35 marks)

 

  1. (a) Give the contributions of Louis Pasteur and Edward Jenner.

Or

(b) List out the properties of chemicals agents that control microbial growth. Add notes

on alcohols.

 

  1. (a) With illustrations, explain the mechanism of action of sulpha drugs.

Or

(b) Give the sources, mode of action and applications of streptomycin.

 

  1. (a) Differentiate between the exo- and endo- toxins of human pathogens in the form of a tabular column.

Or

(b) Write notes on any 2 tests based on antigen-antibody reactions.

 

  1. (a) Mention about pathogen, disease cycle and control measures of tuberculosis.

Or

(b) Write about pathogen, disease cycle and control measures of chicken pox.

 

  1. (a) Describe about pathogen, disease cycle and control measures of syphilis.

Or

(b) Mention about pathogen, disease cycle and control measures of malaria.

 

 

 

 

Part – C

 

Answer Any THREE of the following, each within 1200 words, draw diagrams wherever necessary:                                                                                               (3 x 15 = 45 marks)

 

  1. Write details on various physical agents that control microbial growth.
  2. Describe various mechanisms of antibiotic resistance developed by the pathogens.
  3. Explain various events of host – microbe interaction that takes place during disease development.

 

  1. Write notes on pathogen, disease cycle, diagnoses and control measures of cholera.
  2. Describe the pathogen, disease cycle, diagnoses and control measures of AIDS.

 

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Immunology And Immunotechnology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIFTH SEMESTER – APRIL 2012

PB 5406 – IMMUNOLOGY AND IMMUNOTECHNOLOGY

 

 

 

Date : 30-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

Part –A                                                

 

Answer all, each answer within 50 words:                                                 (10×2=20 marks)

 

  1. What is agglutination?
  2. Define cell mediated immunity.
  3. Define Haptens.
  4. What is the function of suppressor T cells?
  5. Define epitope.
  6. How hybridomas are selected?
  7. Distinguish between cytokines and hormones.
  8. Define antigens.
  9. What are the two pathways involved in monoclonal antibodies?
  10. What are cytotoxic T cells?

 

Part B                                                            

 

Answer the following each answer within 500 words. Draw diagrams wherever necessary:

 

(5×7=35 marks)

  1. a) Explain innate and adaptive immunity.

OR

  1. b) How will you isolate serum from blood?

 

  1. a) Write short notes on:
  2. i) agglutination inhibition
  3. ii) complement fixation

OR

  1. b) Explain radioimmunoassay technique.

 

 

  1. a) Explain the properties of Cytokines.

OR

  1. b) Describe the steps involved in western blot.

 

  1. a) Explain T-lymphocytes.

OR

  1. b) Write about primary and secondary immune response?
  2. a) Differentiate polyclonal antibodies from monoclonal antibodies.

OR

  1. b) Explain the pathways involved in hybridoma technology.

 

                                        

Part C

 

Answer any three of the following each answer within 1200 words. Draw diagrams wherever necessary:                                                                           

                                   (3×15=45 marks)

  1. Explain the different types of immunoglobulins.
  2. Explain antigen-antibody interaction.
  3. Discuss the applications of monoclonal antibodies.
  4. Explain the types and role of cytokines in immunity and mention its functions.
  5. Define and explain cell mediated and humoral immunity.

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Genetics, Plant Breeding And Evolution Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIFTH SEMESTER – APRIL 2012

PB 5516/PB 5510 – GENETICS, PLANT BREEDING AND EVOLUTION

 

 

 

Date : 27-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

PART-A

 

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

 

  1. Incomplete dominance
  2. Test cross
  3. Cistron
  4. Transposable elements
  5. Chemical mutagens
  6. 21 trisomy
  7. Centres of origin
  8. Heterosis
  9. Speciation
  10. Neo Lamarckism

PART-B

 

Answer the following, each within 500 words, draw diagrams wherever necessary:      

                                                                                                                                    (5×7=35 marks)

 

  1. a) Explain multiple alleles with one example.

(OR)

  1. b) Give an account of quantitative inheritance.

 

  1. a) Explain genetic code.

(OR)

  1. Explain genetic recombination using neurospora tetrad formation.

 

  1. a) Write about chromosomal abbreations.

(OR)

  1. b) Distinguish between auto and allopolypoidy.

 

  1. a) Give an account on types of selection.

(OR)

  1. b) Discuss the origin of cultivated plants.

 

  1. a) Write a note on origin of species.

(OR)

  1. b) Explain Lamarckism and its role in evolution.

 

 

PART-C

 

Answer any Three of the following, each within 1200 words only;

Draw diagrams and flowchart wherever necessary:                                     (3×15=45)

 

  1. Describe sex determination in plants.
  2. Discuss the gene regulation in prokaryote.
  3. Explain the steps involved in hybridization.
  4. Write a detailed account of DNA repair mechanism.
  5. Explain natural selection and its role in evolution.

 

 

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Fermentation Technology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

SIXTH SEMESTER – APRIL 2012

PB 6609/PB 6606 – FERMENTATION TECHNOLOGY

 

 

 

Date : 20-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

PART – A

 

ANSWER THE FOLLOWING, EACH WITHIN 50 WORDS ONLY:                 (10 X 2=20 marks)

 

  1. Define fermentation.
  2.  What are secondary metabolites?
  3. What are the four phases of growth in fermentor?
  4. Define upstream processing.
  5. What are the functions of impeller in fermentor?
  6. Define sparger.
  7. What are steam traps?
  8. What is an online sensor?
  9. Comment on Trophophase and Idiophase.
  10. Write the principle of centrifugation.

 

PART – B

 

ANSWER THE FOLLOWING, EACH WITHIN 500 WORDS ONLY:

DRAW DIAGRAM WHEREVER NECESSARY:                                          (5 x 7 = 35 marks)

 

  1.  a) Write a general account on fermentation industries.

(or)

  1. b) Write short notes on transformation process.

 

  1.  a) What is fed batch fermentation?  Write explanatory notes on it.

(or)

  1. Describe the microbial growth kinetics in Continuous culture.

 

  1.  a) Write the Basic functions of a fermentor.

(or)

  1. b) Give an account on any two types of fermentor.

 

  1. a) Write about the measuring and controlling devices for monitoring of any four process

Variables.

(or)

  1. b) Write in short about the application of computers in fermentation.

 

 

 

 

  1. a) Give a detailed account on liquid-liquid extraction.

(or)

  1.  b) Schematically represent the process of down-stream processing.

 

 

PART – C

 

ANSWER ANY THREE OF THE FOLLOWING, EACH WITH 1200 WORDS:

DRAW DIAGRAM WHEREVER NECESSARY:                                                    (3X15=45 marks)

 

 

  1. Write an essay on range and component parts of a fermentation process.

 

  1.  Write a short note on (i) Isolation and Preservation of microorganism

 

(ii) Methods of improvement of industrial microbes.

 

  1. List out the essential parts of fermentor and write short note on each part.

 

  1. Write about the measuring and controlling devices for monitoring  pH, dissolved oxygen and foaming rate of a fermentor.

 

  1.  Write an essay on biosensors with their applications.

 

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Forestry Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIFTH SEMESTER – APRIL 2012

PB 5410 – FORESTRY

 

 

Date : 30-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

  Part – A

                                                           

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

 

  1. Write about the salient features of alpine.
  2. Bring out the major events of hydrosere.
  3. Give the significance of sacred grooves.
  4. Comment on biological control of pests in forests.
  5. Write short notes on coppicing system.
  6. What are recreational forests? Give example.
  7. Write the role of remote sensing in forest protection.
  8. Enumerate the sources and uses of various forest minor products.
  9. Write about the roles of WWF.
  10. Give details on Forest Conservation act 1980.

 

Part – B

 

Answer the following, each answer  within 500 words.  Draw diagrams wherever necessary:

 

(5 x 7 = 35 marks)

  1. (a) Illustrate and explain the forest ecosystem.

Or

(b) Describe about various positive interactions of biotic components.

 

  1. (a) Explain the concept of Biosphere Reserve.

Or

(b) Give details on various biological destructive forces of forests. Add a note on

preventive the methods.

 

  1. (a) Bring out nursery techniques followed in forestry.

Or

(b) Write notes on the objectives and types of social forestry.

 

  1. (a) Explain the methods to determine the age of a tree.

Or

(b) Write about the qualities of wood with timber value.

 

  1. (a) Describe about various classes of National Forest Development program.

Or

(b) Explain about Forestry Organization and Administration.

 

 

 

 

Part – C                                                         

 

Answer Any THREE of the following, each within 1200 words, draw diagrams wherever necessary:

                                                                                               

                                                                                                                            (3 x 15 = 45 marks)

  1. Describe the various factors that affecting the forest types.
  2. Give various causes, types and prevention of forest fire.
  3. Explain about high forest system of forest regeneration.
  4. Write details about forest mensuration in terms of growth and biomass.
  5. Explain the principles, objectives and features of National Forest Policy of India.

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Herbal And Ethanobotany Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

FIFTH SEMESTER – APRIL 2012

PB 5517/PB 5511/PB 5503 – HERBAL AND ETHANOBOTANY

 

 

 

Date : 30-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

PART – A

 

Answer the following, each with in 50 words only:                                      (10 X 2 = 20 marks)

 

  1. What is aromatherapy?
  2. What is meant by drug adulteration?
  3. What is the role of herbarium in herbal medicine?
  4. What is ontogenetic variation?
  5. Write any two therapeutic values of Phyllanthus amarus.
  6. What is a sitz bath?
  7. Write about tinctures.
  8. What is hydrotheraphy?
  9. Distinguish between Ayurveda and Siddha medicines.
  10. Who are Todas?

PART – B

 

Answer the following, each answer with in 500 words;

Draw diagrams wherever necessary:                                                                   (5 x 7 = 35 marks)

 

  1. a) Describe the evaluation method in drug analysis.

(OR)

  1. b) Summarize the medicinal properties of Andrographis paniculata and Ocimum

     sanctum.

 

  1. a) Explain the chemical composition and medicinal uses of Ginger.

(OR)

  1. b) Briefly describe the procedure for preparing capsules and elixirs.
  2. a)  Write short notes on the preparation of herbal oils.

(OR)

  1. b) Give an account on the medicinal uses of Eclipta alba.

 

  1. a) Briefly explain the ayurvedha system of medicine.

(OR)

  1. b) Write about the preparation and storage methods of plant drugs for

commercial purpose.

 

  1. a) Write an account on tribal economy and governments efforts in tribal welfare.

(OR)

  1. b) What is intellectual property rights in relation to traditional medicine?

 

 

PART – C

 

Answer any three of the following, each with in 1200 words;

Draw diagrams wherever necessary:                                                               (3 x 15 = 45 marks)

 

  1. Write an essay on the classification and evaluation of drug plants.
  2. What are phytochemicals? Write an easy on alkaloids.
  3. Describe the medicinal properties and extraction of phytochemicals from Azhadiracta and Vinca rosea.
  4. Write an essay on the methods of extraction of aroma oils.
  5. Write about the importance of ethno botany in the traditional Indian system of medicine.

 

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Loyola College B.Sc. Plant Biology and Biotechnology April 2012 Environmental Biotechnology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.

SIXTH SEMESTER – APRIL 2012

PB 6610/PB 6605 – ENVIRONMENTAL BIOTECHNOLOGY

 

 

 

Date : 18-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

 

PART-A

 

Answer the following, each within 50 words only:                                         (10X2=20 Marks)  

 

  1. What is Biogas?
  2. What is silage?
  3. Define Biosorption.
  4. What are Lagoons?
  5. What are Xenobiotics?
  6. Write the uses of Lowshear air lift reactor?
  7. Explain Bioventing.
  8. Define biomineralization.
  9. Define Biofilm.
  10. What are radionuclides?

 

 

PART-B

 

Answer the following within 500 words each:

Draw diagrams wherever necessary:                                                                      (5X7=35 marks)

 

  1. a) Give an account on Hydrogen Production.

(OR)

  1. b)  Write briefly about non-conventional energy resources.

 

  1. a) Describe in detail about the working of trickling filter in sewage treatment.

(OR)

  1. b) Explain Anaerobic digestion of sewage.

 

  1. a) Explain the degradation pathway of any one xenobiotics.

(OR)

  1. b) Discuss the Soil pollution by Xenobiotics.

 

  1. a) Explain briefly about the process of Phytoremediation.

(OR)

  1.  b)  Describe the design of Plug flow reactor.

 

 

 

 

 

  1. a) Explain the methods employed in microbial leaching.

(OR)

  1. b)  Give an account on biocorrosion.

 

 

PART-C

 

Answer any THREE of the following, each with 1200 words:

Draw  diagrams wherever necessary:                                                                   (3X15=45 marks)

 

 

  1. Give a detailed account on Recycling of solid waste products.
  2. Describe in detail about the treatment of oil spills.
  3. Discuss the methods to purify polluted air.
  4. Describe in detail about the bioremediation strategies.
  5. Explain in detail about the methods to uptake radionuclides from polluted sites.

 

 

 

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