LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – PLANT BIOLOGY & BIOTECHNOLOGY

AE 05

THIRD SEMESTER – NOV 2006

PB 3502 – ANGIO. TAXONOMY & EMBRYOLOGY

 

 

Date & Time : 02-11-2006/9.00-12.00   Dept. No.                                                       Max. : 100 Marks

 

 

 

PART – A

Answer all the questions.                                                                                (20 marks)

I Choose the best answer.                                                                               (5 x 1 = 5)

 

1. Gynandrophore is characteristic of the family:

1. Cucurbitaceae b. Solanaceae c. Capparidaceae     d. Anacardiaceae

 

1. Sexual system of classification is a type of  ——- classification.

1. Artificial b. Natural c. Phylogenetic            d. Modern

 

1. Gossypium hirsutum belongs to the family

1. Euphorbiaceae b. Solanaceae c. Cucurbitaceae          d. Malvaceae

 

1. The ubisch bodies are present in

1. pollen tube b.pollen mother cell d. pollen grain             d. tapetal cells

 

1. The number of microspore mother cells required to produce 100 pollen grains is:

1. 25 b. 50 c. 75                d. 100

 

II State whether the following statements are true or false.                           (5 x 1 = 5)

 

6. Keys used in identification of plants are indented and bracketed.

 

7. Polygamous flowers are characteristics of Cucurbitaceae.

 

8. Catharanthus roseus is known for its narcotic value.

 

9. Dichogamy is a condition where the anther and stigma mature at same time.

 

10. The three nuclei at the micropilar end form the antipodals.

 

III Complete the following                                                                             (5 x 1 = 5)

 

11. In numerical taxonomy, characters are referred as ————–.

 

12. Binomial name for onion is ————- —————.

 

13. Tobacco contains an alkaloid —————.

 

14. Remains of nucellus in a seed is called —————–.

 

15. The distal most cell of the suspensor is called as —————.

 

 

 

 

IV Answer the following in not more than 50 words each.                           (5 x 1 = 5)

 

16. Define archechlamydeae
17. Mention the features of Bicarpellatae
18. What are essential oils?
19. What is allogamy?
20. Write short notes on circinotropous ovule.

 

 

PART – B

 

 

Answer any FIVE of the following in not more than 350 words.                 (5 x 8 = 40)

 

21. Comment on the principles of ICBN.
22. Give the outline of Bentham and Hooker’s system of classification.
23. Enumerate the salient features of Euphorbiaceae.
24. Write notes on spices and condiments.
25. Give the binomial, family, useful parts and uses of any 2 cereals and 2 pulses.
26. Draw a neatly labelled diagram showing the T.S. of a mature anther.
27. Briefly describe the process of fertilization
28. Describe the development of a typical monocotyledonous embryo.

 

 

PART – C

Answer the following in not exceeding 1500 words each.

 

29. (a) With suitable examples describe biochemical and molecular systematics.

Or

(b) Compare the floral characters of the families Capparidaceae, Anacardiaceae

and Cucurbitaceae.

 

30. (a) Describe the structure and development of the various types of embryo sac

found in angiosperms.

Or

(b) Give an illustrated account of the various types of endosperms found in

angiosperms.

 

 

Go To Main page

                LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

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

IB 41

THIRD SEMESTER – APRIL 2007

PB 3502 – ANGIO. TAXONOMY & EMBRYOLOGY

 

 

 

Date & Time: 21/04/2007 / 1:00 – 4:00 Dept. No.                                                Max. : 100 Marks

 

 

   PART – A                                    (20 marks)

 

Answer all the questions.

I  Choose the best answer                                                                   (5 x 1 = 5)

 

1.Attributes correspond to

1. Characters b. Genus c. Species                    d. Taxon

 

2. Find the odd one out
3. Ixora b. Catharanthus c. Datura         d. Phyllanthus

 

3.The morphological nature of the edible part in apple is

1. pericarp b. receptacle    c. mesocarp     d. endocarp

 

4. Pollination taking place between two flowers borne by two separate plants of the same

species is known as …..

1. Geitonogamy              b. Xenogamy        c. Homogamy        Cleistogamy

 

5. A pollen is best defined as a
6. male gamete                           b. microspore mother cell
7. partially developed embryo    d. partially developed male gametophyte

 

II State whether the following statements are true or false.                           (5 x 1 = 5)

 

6. Archechlamydeae refers to polypetalous nature.
7. Aloe vera belongs to the family Poaceae.
8. Eucalyptus oil is employed in the floatation process for the separation of minerals

from their ores.

9. Double fertilization means the fusion of one male gamete with the egg and the other

with secondary nucleus.

10. In anatropus ovule the micropyle and chalaza are in straight line with funicle.

 

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

 

11. Anthers arranged in two different sizes in a flower is called as ————–.
12. Dioecious, tricarpellary, superior ovary are characteristic to the family ————.
13. The oil derived from the waste of the bark peeling process of ——————– is

used as a carminative and astringent.

14. When the gynoecium matures earlier than the anthers, the condition is ————-.
15. The process by which seedless fruits are produced is known as ———————.

 

 

 

 

 

IV Answer the following, each within 50 words.                                          (5 x 1 = 5)

 

16. Write short notes on Cryptogamia
17. What are polygamous flowers?
18. Distinguish between spices and condiments.
19. What is pollen kitt ?
20. Differentiate chalazogamy from mesogamy.

 

PART – B

 

Answer any FIVE of the following, each not exceeding 350 words. Draw diagrams and flow charts wherever necessary.                                                                    (5 x 8 = 40)

 

21. Explain the classification of dicots by Bentham and Hooker.
22. Bring out the salient features of the family Cucurbitaceae.
23. Describe the inflorescence in Euphorbiaceae.
24. Explain the economic importance of any 2 cereals and 2 millets.
25. Write the botanical name, family, morphology of useful parts and uses of cotton,

jute, sandal and pepper.

26. Give an illustrated account of development of microsporangium.
27. What is an endosperm? Describe the development of Nuclear endosperm.
28. Briefly explain the conditions that promote cross pollination.

 

PART – C

 

Answer the following, each not exceeding 1500 words.                               (2 x 20 = 40)

 

1. (a) With suitable examples explain how biomolecules are useful in

biosystematics?

 

Or

(b) Compare the floral characters of Rubiaceae, Apocyanaceae and Solanaceae in

a tabular column.

 

30 (a) Describe the structure and development of Polygonum type of embryosac.

State how it is different from Allium and Peperomia types.

Or

 

(b) Describe the development of a typical monocot embryo.

 

 

 

Go To Main page

     LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

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

VE 07

THIRD SEMESTER – April 2009

PB 3502 – ANGIO. TAXONOMY & EMBRYOLOGY

 

 

 

Date & Time: 06/05/2009 / 9:00 – 12:00  Dept. No.                                                 Max. : 100 Marks

 

 

 

PART – A    (20 MARKS)

1. CHOOSE THE CORRECT ANSWER: 5 x 1 = 5           
2. General Plantarum is the work of _____
3. Linnaeus b) Bentham & Hooker c) Engler          d) Prantle
4. In Dicots, the ovule is attached to the placenta, by a short stalk known as,
5. Funicle b) Nucellus      c) Hilum          d) Chalaza
6. Androgynophone is seen in the family.
7. Poaceae b) Amaranthaceae      c) Euphorbiaceae        d) Capparidaceae
8. Ornithophily is pollination by
9. Birds b) Bats             c) Ants             d) Wind
10. In Poaceae, the fruit is a) Achene        b) Caryopsis    c) Nuts               d) Utricle

 

1. STATE WHETHER THE FOLLOWING STATEMENTS ARE TRUE OR FALSE: 5 x 1 = 5        
2. The pollentube enters the ovule at the chalazal end of the ovule is called Porogamy.
3. Plants are Monoecious in the family Cucurbitaceae.
4. Cleistogamous flowers promote Cross pollination.
5. In double fertilization, the male gamete fuses with the egg 4 the other male gamete fuses with the polar nuclei.
6. The fuclosperm found in Dateseed is Horny type.

 

• COMPLETE THE FOLLOWING: 5 x 1 = 5           

11. ___________ helps in the dehiscence of the Anther.
12. Crosspollination is also known as ___________.
13. The basic unit used in Numerical Taxonomy is ____________.
14. The Nucellus forms a beak like outgrowth at the micropye, known as ____________ in Polygonum.
15. Glumes are found in the family _________.

 

1. ANSWER THE FOLLOWING, EACH WITHIN 50 WORDS: 5 x 1 = 5         
2. What is Tapetum?
3. Define Anemophily.
4. What are Synergids.
5. Write down the systematic position of the family Solanaceae.
6. Mention any 2 Timber yielding plants, with their Binomials.

 

 

 

 

PART – B

ANSWER ANY 5 OF THE FOLLOWING EACH WITHIN 350 WORDS:   5 x 8 = 40 Marks

 

21. Write notes on essential oils, their source and preparation.
22. What are the Contrivances for self pollination?
23. Describe Apomixis.
24. What is a Ruminate Endosperm?
25. Explain Author citation.
26. Give a brief account of Engler & Prantle’s system of classification.
27. Mention any 2 plants, that give spices, write the systematic position, morphology of the useful part and their Economic values.
28. Describe the development of Anther.

PART – C

ANSWER THE FOLLOWING EACH IN 1500 WORDS:                     2 x 20 = 40 Marks

 

29. Write down the salient Features of the family Rubiaceae. Mention the Economic importance.

(or)

Explain the structure and development of Monocot Embryo.

30. Write down the salient Features of the family Anacardiaceae. Mention the Economic importance of the family.

(or)

1. Describe the development of Tetrasporic Embryosac. (10 Marks)
2. Describe the development and structure of Cellular Endosperm. (10 Marks).

 

Go To Main page