Loyola College B.Sc. Plant Biology & Adv Zoology April 2009 Algol., Mycol. & Bryology Question Paper PDF Download

  LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

VE 01

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

FIRST SEMESTER – April 2009

PB 1502 – ALGOL., MYCOL. & BRYOLOGY

 

 

 

Date & Time: 20/04/2009 / 1:00 – 4:00          Dept. No.                                                          Max. : 100 Marks

 

 

PART – A (20 Marks)

  1. Choose the correct answer:                           (5 x 1 = 5)
  2. A motile flagellate asexual cell is known as
  3. zoospore b) zygospore    c) conidiospore            d) tetraspore
  4. Cell wall in algal cells consists of
  5. Chitin b) cellulose      c) cutin                        d) suberin
  6. ‘Black rust’ of wheat is caused by
  7. Rhizopus b) Neurospora c) puccinia       d) polyporus
  8. The sporophytes of Bryopsida are characterized by the presence of
  9. Rhizoids b) scales           c) pseudoelaters          d) operculum
  10. Antherozoids in Funaria are
  11. Spirallycoiled b) quadriciliated          c) aciliated       d) biciliate
  12. State whether the following statements are TRUE or FALSE: (5 x 1 = 5)
  13. In oogamy, one of the gametes is non-motile.
  14. Algae growing on rocks are called planktons.
  15. Anthoceros has symbiotic association with blue-green algae.
  16. Zygospores are produced in colletotrichum.
  17. The female sex organ of bryophytes is called archegonium.

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

  1. The haploid spores of Ectocarpus are called __________________.
  2. In bryophytes, mucilaginous cavities are seen in ___________________.
  3. In Rhizopus, the sexual reproduction leads to the formation of _______________ spores.
  4. The symbiotic N2 fixing prokaryotic alga is _________________.
  5. Colletotrichum belongs to the class ____________________.
  6. Answer the following within 50 words: (5 x 1 = 5)
  7. Distinguish between epipelic and epilithic algae.
  8. What are obligate parasites?
  9. Write down the systematic position of cyclotella.
  10. What is dikaryotization?
  11. List any four features of Hepaticopsida.

PART – B

Answer any FIVE within 300 words.

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

  1. a) Give an account of the salient features of Blue-greenalgae.

(OR)

  1. Discuss the life cycle pattern in Algae.
  2. a) Describe the cell structure of Anabaena.

(OR)

  1. Give an account of asexual reproduction in Ectocarpus.
  2. a) Bring out the salient features of fungi.

(OR)

  1. b) Describe the asexual reproduction in Albugo.
  2. a) Write notes on the structure and reproduction of Rhizopus.

(OR)

  1. b) Enumerate the salient features of Anthoceratopsida.
  2. a) Write notes on the economic importance of bryophytes.

(OR)

  1. b) Give an account on the structure of Funaria

PART-C

Answer any THREE, each within 1,200 words.

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

 

  1. Give an account of classification of algae proposed by Harold C Bold, mentioning the salient features of each division.
  2. Explain the general characteristics and various habits of Algae.
  3. Describe the life history of polysiphonia.
  4. Descirbe the life cycle of puccinia graminis.
  5. Explain the structure of gametophyte of Anthoceros.

 

 

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Loyola College B.Sc. Plant Biology & Adv Zoology Nov 2010 Physics For Biology Question Paper PDF Download

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

   B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & ADV. ZOOLOGY

THIRD SEMESTER – NOVEMBER 2010

PH 3204 – PHYSICS FOR BIOLOGY

 

 

 

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

Time : 9:00 – 12:00

PART-A

Answer all questions                                                                                                                        (10 x 2 = 20)

 

  1. State the significance of Reynold’s number of a liquid.
  2. What are cofactors? Name any one.
  3. Define the resolving power of a microscope.
  4. Find the nuclear radius of a Ho165
  5. What are transducers?
  6. Define ‘range’ and ‘stopping potential’ of an alpha particle.
  7. Define intensity of sound.
  8. State the laws of refraction of light.
  9. Differentiate between diffusion and osmosis.
  10. What are coupled reactions?

PART-B

Answer any four questions                                                                                                           (4×7.5=30)

 

  1. Write a note on photosystems I and II.
  2. Explain in detail, how Oswald viscometer is used to compare the viscosities of two liquids.
  3. Give a detailed account of temperature transducer.
  4. Derive the expression for angular magnification for a compound microscope
  5. Calculate the binding energy of an α- particle and express the result both in MeV and joules. (mass of α- particle =4.001506 amu, mass of proton = 1.007276 amu , mass of neutron = 1.008665 amu )

 

PART-C

Answer any four questions                                                                                                          (4×12.5=50)

 

  1. Explain with a neat diagram the process of glycolysis with all the intermediate steps.
  2. Derive Poiseuille’s formula for the flow of liquid through a capillary tube.
  3. Explain with a neat circuit diagram, the working of, (i) a magnetostriction oscillator and
    (ii) Galton whistle.
  4. (i) Give a detailed account of Pressure transducer .

(ii) State the laws of osmotic pressure

  1. (i) Explain alpha ray spectrum. Give any four properties of alpha rays.

(ii) Discuss the theory of beta decay.

 

 

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