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Loyola College B.Sc. Adv. Zoology & Bio-Technology April 2012 Essentials Of Plant Biology Question Paper PDF Download

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

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

SECOND SEMESTER – APRIL 2012

PB 2102/2100 – ESSENTIALS OF PLANT BIOLOGY

 

 

Date : 23-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

 

PART  A       

 

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

 

  1. What is hormogonium?
  2. What are sporocarps?
  3. Define plant nomenclature.
  4. List out the different components of a floral formula.
  5. Define vascular cambium.
  6. Mention the type of vascular bundle in dicot stem and root.
  7. Write the importance of pollenkitt.
  8. Mention the contribution of hypophysis towards embryo development?
  9. What is essential oil? Give one example.
  10. Define condiments.   Give one example.

 

    PART  B                                              ( 5 x 7 = 35 marks)

 

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

 

11  a.  Describe the internal structure of coralloid root of Cycas.

Or

  1. Explain the structure of antheridium and archegonium of Funaria.

 

12  a. Describe the taxonomic features of Caesalpiniaceae.

Or

  1. Linnaeus system of plant classification is called as an artificial system – Justify

13  a. Explain the theories of meristem.

                                                Or

  1. Briefly explain the anomalous secondary growth in Bignonia.

 

14  a. Describe the ultramicroscopic structure of pollen grain.

Or

  1. Explain the various steps involved in double fertilization.

 

15  a.   Write the economic importance of any three fibre yielding plants.

Or

  1. Write the economic importance of any three timber yielding plants.

 

PART C                                            ( 3 x15 = 45 marks)

 

Answer any three of the following, each within 1200 words only. Draw diagrams wherever necessary.

 

  1. Describe the life cycle of Puccinia.
  2. Write notes on aestivation and placentation.
  3. Describe the anatomical features of monocot and dicot leaves. Add a note on their types of

stomata.

  1. Write an essay on the structure and development of various types of endosperm.
  2. Write the binomial, family, morphology of useful parts and uses of sweet flag, tobacco,

wheat, redgram and sesame.

 

 

 

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