LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

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

THIRD SEMESTER – APRIL 2012

PB 3506/3502 – ANGIOSPERM, TAXONOMY, ECO.BOTANY & EMBRYOLOGY

 

 

 

Date : 24-04-2012              Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

PART – A

 

ANSWER THE FOLLOWING, EACH ANSWER WITHIN 50 WORDS ONLY:

(10 x 2 = 20 Marks)

 

1. What is Author Citation?
2. Expand ICBN, What is Binomial? Give one example.
3. What is Cyathium?
4. Explain Adnation in Solanaceae.
5. Bring out the importance of Essential Oil.
6. Give the Botanical name and Economic uses of Jute.
7. Define Palynology and give its application.
8. What is double fertilization?
9. What is Parthenocarpy?
10. Write short note on Cellular Endosperm. Give example.

 

 

PART – B                                                     

ANSWER THE FOLLOWING, EACH ANSWER WITHIN 500 WORDS:

DRAW DIAGRAMS WHEREVER NECESSARY:                                              (5 x 7 = 35 Marks)

 

11. a) List the differences between Linnaeus, and Bentham & Hooker classifications.

(or)

1. b) Write short notes on biochemical and molecular systematics.
2. a) Enumerate the salient features of Poaceae and add a note on its economic

significance.

(or)

1. b) Describe in detail the flower of Capparidaceae. Compare it with Anacardiaceae.

 

13. a) Give Botanical name, Family and Morphology of useful part and uses of Opium and

Tobacco.

(or)

1. b) List any three timber yielding plants and give their economic uses.

 

14. a) Write brief account on Anther.

( or )

1. b) Trace various changes associated with development of Ovule.

 

15. a) Write a brief note on Apomixis.

( or )

1. b) Write an account on Post Fertilization changes.

 

PART – C

 

ANSWER ANY THREE THE FOLLOWING, EACH ANSWER WITHIN 1200 WORDS:

DRAW DIAGRAMS WHEREVER NECESSARY:                                                    (3 x15 = 45 Marks)

 

16. What are the different types of Botanical keys used for identification of angiosperm? Explain

its applications.

17. Compare the salient features of Rubiaceae and Apocynaceae.
18. Give the Botanical name, Family, Morphology of useful part and Uses of Rice, Wheat,

Maize, Red gram & Pepper.

19. What is Cross Pollination? Explain in detail the different modes of Cross Pollination.
20. Explain the development of Embryo in Capsella.

 

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

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

THIRD SEMESTER – NOVEMBER 2012

PB 3506/PB 3502 – ANGIOSPERM, TAXONOMY, ECO.BOTANY & EMBRYOLOGY

 

 

Date : 02/11/2012             Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

PART – A     

 

ANSWER THE FOLLOWING, EACH WITHIN 50 WORDS:                              (10 x 2 = 20 marks)

 

1. Define Author citation.
2. What is ICBN?
3. Mention any two characters of Capparidaceae.
4. Write notes on the spikelet of Poaceae.
5. What are millets?
6. Give the botanical name for Tea and Coffee Plant.
7. What is palynology?
8. What is microspore?
9. Define double fertilization.
10. What is polyembryony?

 

PART – B     

 

ANSWER THE FOLLOWING, EACH WITHIN 500 WORDS,

DRAW DIAGRAMS / FLOW CHARTS WHEREVER NECESSARY:                 (5 x 7 = 35 marks)

 

11. a) Give an account on the Botanical keys in the identification of angiosperms.

(OR)

1. b) Write notes on:

(i)   Molecular systematic

(ii)  Binomial nomenclature.

 

12. a) Describe the floral characters of Euphorbiaceae.

(OR)

1.  b) Enumerate the characteristic features of the family Cucurbitaceaae.

 

13. a) What are spices and condiments? Give the botanical name and the morphology of useful parts of

Clove, Ginger and Turmeric.

(OR)

1. b) Mention the botanical name for Cotton, Jute and Manila hemp and give their uses.

 

14. a) Describe the development of microsporangium.

(OR)

1. b) Write notes on the modes of cross pollination.

 

15. a) Write notes on Apomixis.

(OR)

1. b) Describe briefly the structure and development of nuclear endosperm.

 

 

 

 

PART – C     

 

ANSWER ANY THREE OF THE FOLLOWING, EACH WITHIN 1200 WORDS.

DRAW DIAGRAMS / FLOW CHARTS WHEREVER NECESSARY:               (3 x 15 = 45 marks)

 

16. Give a comparative account of Linnaeus and Bentham and Hooker system of classification
17. Write the salient features of the family Apocynaceae. List any five economically important plants.
18. What are Cereals? Mention the Botanical name, morphology of useful part and uses of any five

cereals you have studied.

19. Describe the structure and development of Polygonum, Allium and Peperomia type of female

gametophyte.

20. With suitable diagrams, explain the developmental stages of dicot embryo.

 

 

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