Saturday 7 March 2015

BOTANY- 2004, PAPER- I, SECTION –B

                    Time allowed:  Three Hours      maximum Marks: 200
Candidates should attempt Question Nos. 1 and 5 which are compulsory and THREE of the remaining questions, selecting at least ONE question from each Section.

SECTION – B
5.       Answer any four of the following (Answer  should be within 150 words in each case):
(a)    Describe the following:
(i)                  Conifer wood
(ii)                Polyembryony in Gnetum
(iii)               Latex
(iv)              Endothecium

(b)   Distinguish between the following:
(i)                  Nuclear and Cellular endosperm
(ii)                Green and Black tea
(iii)               Aril and Caruncle
(iv)              Stomata and Lenticels

(c)     Write notes on:
(i)                  Kranz anatomy
(ii)                NPC system
(iii)               Fruit of black pepper
(iv)              Indian Botanical Garden

(d)   Write what you know on:

(i)                  Male  germ unit
(ii)                Embryo development in Paeonia
(iii)               Classification of angiosperms by Armen Takhtajan
(iv)              Floral characters Asclepiadaceae
(e)   Describe the following:

(i)                  Distribution of gymnosperms in India
(ii)                Cyathium
(iii)               Bennettitales
(iv)              Orchidaceae in India

6.       Answer the following (Draw  labeled diagrams wherever necessary):
(a)    What are the diagnostic floral features of Brassicaceae?
(b)   Describe male gametes of Ginkgo biloba.
(c)    Why jute is considered a labour –intensive crop?
(d)   What are the structural features of guard cells which help in opening and closing of stomata?

7.       Write short notes on:
(a)    Interxylary phloem
(b)   Bird-pollinated plants
(c)    Role of synergids in double fertilization
(d)   Diagnostic features of family Euphorbiaceae

8.       Mention the botanical name, family and the part(s) used for each of the following:
(a)    Cashew
(b)   Nutmeg
(c)    Kenaf
(d)   Oil palm
(e)   Vetiver oil
(f)     Cork
(g)    Annatto
(h)   Vetiver oil
(i)      Belladonna
(j)     Ginger


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