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Loyola College B.Sc. Plant Biology and Biotechnology April 2007 Algol., Mycol. & Bryology Question Paper PDF Download

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          LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

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

IB 46

FIRST SEMESTER – APRIL 2007

PB 1502 – ALGOL., MYCOL. & BRYOLOGY

 

 

 

Date & Time: 24/04/2007 / 1:00 – 4:00         Dept. No.                                                       Max. : 100 Marks

 

 

Part A

 

Answer all the questions                                                                     (20 marks)

 

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

 

  1. The pigment characteristic of Rhodophycophyta is:
  2. a) Phycoerythrin b) Phycocyanin           c) Fucoxanthin            d) Carotene
  3. The term gonidium is associated with
  4. a) Vaucheria b) Volvox                     c) Anabaena                d) Diatoms.
  5. Budding is seen in
  6. a) Saccharomyces b) Pucinia                    c) Rhizopus                  d) Albugo
  7. Which of the following is a coprophilous fungi?
  8. a) Colletotrichum b) Peziza                      c) Fusarium                 d) Aspergillus
  9. The female sex organ of bryophytes is called
  10. a) Ascogonium b) Oogonium               c) Archegonium          d)Carpogonium

 

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

 

  1. Algae growing on rocks are called planktons.
  2. Mitospores are produced from unilocular sporangia.
  3. Taphrina is a obligate parasite..
  4. All mushrooms belong to basidiomycetes only.
  5. Anthoceros has symbiotic association with blue-green algae.

 

 

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

 

  1. _____ and ______ are the prominent food reserve products of brown algae.
  2. Diatom cells are also referred to as _________.
  3. Sexual reproduction in Rhizopus leads to the formation of _______
  4. Colletotrichum belongs to the class ________.
  5. Apophysis, theca and __ are the three parts of Funaria

 

 

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

 

  1. Distinguish between coenobium and coenocyte.
  2. Write down the systematic position of Vaucheria.
  3. Define heterotrophic mode of nutrition.
  4. Mention any two methods of asexual reproduction in yeast
  5. List any four features of Hepaticopsida.

 

 

Part B

 

Answer any five of the following, each in about 350 words. Draw necessary diagrams.

(5 x 8 = 40)

  1. Compare and contrast the salient features of Blue-green algae
  2. Write about any four habitats of aquatic algae.
  3. Describe the cell structure of
  4. Give the schematic representation only of the life cycle of
  5. Write notes on the asexual reproduction in white rust fungi.
  6. Briefly describe the structure of Polyporus and draw its life cycle.
  7. Explain the structure of sporophyte on Funaria.
  8. Write notes on the economic importance of bryophytes.

 

Part C

 

Answer the following questions in about 1500 words. Draw necessary diagrams

(2 x 20 = 40)

 

  1. Enumerate the general characteristics of algae. Write about the various habits of algae.

(or)

 

  1. Describe the life history of Polysiphonia.

 

  1. Describe the life cycle of Puccinia graminis.

 

(or)

 

  1. Give a detailed account on the structure of gametophyte and sporophyte in Anthoceros.

 

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

by

  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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