LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ADVANCED ZOOLOGY & BIOTECHNOLOGY

IB 2

SECOND SEMESTER – APRIL 2006

                                             PB 2100 – ESSENTIALS OF PLANT BIOLOGY

(Also equivalent to PB 3100)

 

 

Date & Time : 26-04-2006/1.00-4.00 P.M.   Dept. No.                                                       Max. : 100 Marks

 

 

Part A

Answer all the questions                                                                                (20 marks)

Choose the best answer                                                                                  (5×1=5)

 

1. Which of the following is not a spore present in Puccinia:
2. a) ascospore b) basidiospore            c) teliospore      d)  aeciospore

 

2. Identify the wrong statement
3. a) Natural system of classification does not attempt at bringing out phylogenetic

relationship.

1. b) Bicarpellatae has 4 orders and 24 families.
2. c) Present system of naming of plants is known as binomial system of

nomenclature.

1. d) 6 orders and 14 families are included under the series heteromerae.

 

3. Statement 1 : Parenchyma is made up of thin walled cells.

Statement 2 :  Parenchyma is a complex permanent tissue.

1. Statement 1is correct, but statement 2 is incorrect
2. Statement 2 is correct, but statement 1 is incorrect
3. Both statements 1 and 2 are correct.
4. Both statements 1 and 2 are incorrect.

 

4. When micropyle and chalaza lie in one line and the funicle lies parallel to it, the ovule is:
5. a) orthotropous                                        b) anatropous
6. c) campylotropous                           d) circinotropous

 

5. Vincristin and vinblastin are obtained from
6. a) Papaver somniferum                            b) Eugenia caryophyllata
7. c) Catharanthes roseus                            d) Lycopersicum esculenthem

 

 

II State whether the following are true  or false                                             (5×1=5)

 

6. Marsilea is an aquatic fern, included under gymnosperms.
7. Salvia is a member of family Labiatae with bilipped corolla.
8. In dicot leaves, undifferentiated mesophyll tissue is present.
9. PolIen grain is the first cell of the male gametophyte.
10. The alkaloids, morphine and codein are obtained from the capsules of

Cannabis sativa

 

III  Complete the following                                                                (5x 1= 5)

 

11. ————- roots in Cycas show the presence of algal zone.
12. In taxonomic hierarchy each unit of classification is referred to as a —————–

 

13. Vascular bundles in dicot stem are said to be ————-since the xylem and

phloem are arranged in the same radius.

14. When the pollen tube enters the ovule through the integuments, it is called———.
15. Quinine is extracted from the bark of ————–.

 

1. Answer the following each in about 50 words. (5×1=5)

 

16. What is hormogonium?
17. What is citation of author?
18. Distinguish between exarch and endarch conditions.
19. Write a short note on the post – fertilisation changes.
20. Give the binomial of any two timber yielding plants.

 

PART  B

 

Answer any five of the following, each  in about  350 words. Draw diagrams / flowcharts wherever necessary                                                                 (5×8=40)

 

21. Describe asexual reproduction in
22. Give an account of artificial system of classification of plants.
23. Mention the characteristic features of the family Amaranthaceae.
24. Discuss normal secondary thickening in dicot stem.
25. Write about simple permanent tissues.
26. Briefly describe the process of formation of microspores from microspore mother

cells.

27. Mention the scientific name , family, parts used and uses of the following plants:

Geranium, sandal, clove and hemp.

28. Bring out the economic importance of any two each of condiments and fibre

yielding plants.

PART  C

 

Answer the following questions, each in about 1500 words.  Draw diagrams and flowcharts wherever necessary.                                                            (2x 20=40)

 

29 a) What is isomorphic alternation of generations?  Discuss this with regard to the

life cycle of Ectocarpus.

(OR)

1. b) Give a comparative account of the anatomy of dicot and monocot root.

 

30 a) Describe the characteristics features of the family Lamiaceae. Mention the

binomial and economic importance of any six plant species.

(OR)

1. b) Describe the structure and development of dicot embryo.

 

 

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      LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ADVANED ZOOLOGY &  BIO-TECH.

VE 03

SECOND SEMESTER – April 2009

PB 2102 / 2100 / 3100 – ESSENTIALS OF PLANT BIOLOGY

 

 

 

Date & Time: 25/04/2009 / 1:00 – 4:00  Dept. No.                                                  Max. : 100 Marks

 

 

PART A

       Answer all questions                                                                              (20 Marks)    

 

       I   Choose the correct answer                                                              (5×1 =5 Marks)

 

1. Match A) heterocyst B) conidia C) operculum     D) microsporophyll  with
2. i) Funaria      ii) Nostoc          iii) Cycas        iv) Aspergillus
3. a. A-ii, B-iv, C-iii, D-i A-ii, B-i, C-iv, D-iii
4. A-ii, B-iv, C-i, D-iii d. A-ii,,B-iii, C-iv,D-i
5. Bilabiate corolla is present in
6. a. Ocimum sanctum Achyranthes aspera         c. Allium cepa     d.  Gomphrena globosa
7. Pick the odd one out:
8. Fibre b. Sclereid                   c. Sclerenchyma                      d. Collenchyma
9. Dimorphic tapetum is found in
10. Alectra thomsonii b. Acorus calamus c. Helleborus foetidus          d. Santalum album
11. Coffee plant belongs to the family
12. Rubiaceae b. Umbelliferae           c. Apocynaceae                       d. Asteraceae

 

II State whether the following statements are true or false                        (5×1= 5 Marks)

 

6. 06. Marsilea is included under the Subkingdom Chlorota.
7. Leucas aspera has verticillaster type of inflorescence.
8. Collateral, open vascular bundles are characteristic of dicot roots.
9. The intine of the pollen grain is made up of sporopollenin.
10. Grapes are used in the preparation of acetic acid.

 

III Complete the following                                                                   (5×1 = 5 Marks)

 

11. White rust fungus is the common name for _________________.
12. Rules for naming of plants were originally proposed by ___________________.
13. If the subsidiary cells are parallel to the guard cells, the type of stomata is said to

be_________________.

14. The wall formation from the periphery towards the centre is called__________________.
15. The unopened inflorescence of __________________ yields palm sugar.

 

 

1. Answer the following, each in about 50 words (5x 1 = 5 Marks)

 

16. Write down the systematic position of Lycopodium.
17. Define taxonomic hierarchy.
18. Distinguish between vascular cambium and cork cambium.
19. What is Pollinium?
20. Differentiate spices from condiments.

 

 

PART B

Answer the following, each within 350 words only.  Draw diagrams and flowcharts wherever

necessary.                                                                                          (5x 7= 35 Marks)

 

21.a) Give an account of the habit and cell structure of Nostoc.

(OR)

1. b) Describe the sex organs of

22.a) Enumerate the salient features of Lamiaceae.

(OR)

1. b) Write the floral characteristics of Amaranthaceae.

23.a) What are meristems?  Mention their characteristics. Write down the types of meristems.

(OR)

1. b) Describe the anatomy of dicot leaf.

24.a) Describe the internal structure of a  mature anther.

(OR)

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

25.a) What are cereals? Write the economic importance of any three cereals.

(OR)

1. b) What are narcotics? Write the economic importance of any three narcotic plants.

 

PART C

Answer any three of the following, each within 1200 words only.  Draw diagrams and flowcharts wherever necessary.                                                      (3×15= 45 Marks)

 

26. Describe the asexual and sexual reproduction of Ectocarpus.
27. Give an account of Bentham and Hooker’s system of classification. Add a note on

its merits and demerits.

28. Give a comparative account of the anatomy of dicot and monocot stem.
29. Describe the structure and development of dicot embryo.
30. Write the scientific name, family, useful parts and uses of two spices, two fibres and

two timber yielding plants.

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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.

 

16. Describe the life cycle of Puccinia.
17. Write notes on aestivation and placentation.
18. Describe the anatomical features of monocot and dicot leaves. Add a note on their types of

stomata.

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

wheat, redgram and sesame.

 

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