LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & PLANT BIO-TECH.
THIRD SEMESTER – November 2008
ED 05
PB 3502 - ANGIOSPERM TAXONOMY, ECO. BOTANY & EMBRYOLOGY
Date : 06-11-08
Time : 9:00 - 12:00
Dept. No.
Max. : 100 Marks
PART – A
I. Choose the Correct Answer:
(5 x 1 = 5 Marks)
1) A basic unit of Taxonomy is species which was introduced by
a) John ray
b) Bentham and Hooker
c) Linnaeus
d) Hutchinson
2) Antibiotic tomatine is obtained from the seeds of
a) Solanum tuberosum
b) Lycopersicum esculentum
c) Crotalaria juncea
d) Phoenix Sylvestris
3) Latex is not present in
a) Euphorbia b) Hevea
c) Cucurbita
d) Calotropis
4) Herkogamy is a contrivance for
a) Allogamy b) Autogamy c) Chasmogamy
d) Cliestogamy
5) Double fertilization occurs in
a) Ovary
b) Ovule
c) Embryo
d) Anther
II. State Whether the following statements are true or false:
(5 x 1 = 5 Marks)
6) Wheat belongs to the family Apocynaceae
7) Cucumis sativus in the botanical name of water melon
8) Tapetum is a part of anther wall
9) Long fibres of cotton seed are known as lint
10) In groundnut, the oil is present in embryo
III. Complete the following:
(5 x 1 = 5 Marks)
11) Stamens arranged in two bundles are referred as ______________
12) Cyathium inflorescence is the characteristic feature of family _______________
13) The medicine quinine is obtained from the plant ________________
14) The micropyle and chalaza are in straight line in _____________ ovule.
15) Formation of fruit without fertilization is called _________________
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IV. Answer the following each within 50 words:
(5 x 1 = 5 Marks)
16) What is epipetalous Stamen?
17) Write short notes on Synandrous Condition.
18) What is Pollen Kitt?
19) Distinguish between spices and condiments.
20) What is Apomixis?
PART – B
Answer any FIVE of the following each within 350 words:
(5 x 8 = 40 Marks)
21) Describe the floral characters of the families Apocynaceae and Amaranthaceae
22) Write short notes on herbarium techniques
23) Describe the inflorescence of Euporbiaceae
24) Give the economic importance of any two cereals and two pulses
25) Describe the development of male gametophyte
26) Write the botanical name, family, morphology of useful parts and uses of any four timber
yielding plants.
27) Briefly describe the process of double fertilization
28) Describe the structure and development of tetrasporic embryosac
PART – C
Answer the following each within 1500 words:
(2 x 20 = 40 Marks)
29) a) Give an outline of Bentham and Hooker’s classification. Add a note on its merits and
demerits
(or)
b) Compare the salient features of the family capparidaceae and cucurbitaceae.
30) a) Explain the structure and development of Nuclear and cellular endosperm
(or)
c) Explain the structure and development of monocot embryo.
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