Plant Biodiversity B.Sc Model Question Papers : alagappauniversity.ac.in

Name of the University : Alagappa University
Degree : B.Sc
Department : Botany
Subject Code/Name : Plant Biodiversity
Semester : I
Document Type : Model Question Papers
Website : alagappauniversity.ac.in

Download Model/Sample Question Paper : APRIL 2011 : https://www.pdfquestion.in/uploads/alagappauniversity.ac.in/4031-B.Sc.%20BOTONY.pdf

Alagappa Plant Biodiversity Question Paper

(ALGAE, FUNGI, LICHENS, PLANT PROTECTION
AND BRYOPHYTES)
Time : 3 Hours
Maximum : 75 Marks

Related : Alagappa University Biomolecules B.Sc Model Question Papers : www.pdfquestion.in/4032.html

Part A :

1. Blue Green Algae (BGA).
2. Palmelliod stage.
3. Cystocarp.
4. Trabeculae.
5. Ascocarp.
6. D.D.T.
7. Teleospore.
8. Canker.
9. Horn worts.
10. Calyptra.
11. (a) Write methods of reproduction in Oedogonium.
12. (a) Present the general characteristics of Phycomycetes.
13. (a) Give an account of the cause, symptoms and control of Bunchy top
14. (a) Give an account of toxic hazards of pesticides.
15. (a) Describe the structure of male sex organs in Bryophytes.
16. Write about the salient features of any five algal divisions.
17. Describe the plant body and sexual reproduction in Caulerpa.
18. Describe the symptoms, casual organisms control
19. Describe the male and sex organs of polytrichum.
20. Explain the biological control of plant disease.

PLANT BIODIVERSITY—II

(PTERIDOPHYTES, GYMNOSPERMS AND
PALAEOBOTANY)
1. Rhopalostachya.
2. Heterospory.
3. Carinal canal.
4. Gelatinous ring.
5. Girdle bundle.
6. Male cone of Gnetum.
7. Radiocarbon dating.
8. Coenozoic Era.
9. Pentoxylon.
10. Lyginopteris.
11. (a) Bringout the general characteristics of Pteridophytes.
12. (a) Describe the structure of Sporophyll and Sorus in Adiantum.
13. (a) Enumerate the general characteristics of Gymnosperms.
14. (a) Write about ‘‘Compression’’ and ‘‘Pterifaction’’.
15. (a) Explain the reconstruction of Lepidodendron.
16. What is ‘‘Heterospory’’ – Illustrate this with the life
17. Compare the Asexual organs of Adiantum and Marsilea.
18. Describe the reproduction in Pinus.
19. Describe in detail the ‘‘Geological time scale’’.
20. Describe the stem anatomy of ‘Rhynia’’ and ‘‘Lepidodendron’’.

CYTOLOGY, ANATOMY & MICROTECHNIQUES

1. Cell sap.
2. Cristae.
3. Tissue.
4. Bordered pit.
5. Bulliform cells.
6. Periderm.
7. Refractive index.
8. Vital stain.
9. Serial sections.
10. Paraffin wax.

Part – B : (5 × 5 = 25)
Answer all questions
11 a. Describe the structure and function of Plasma membrane.
(Or)
b. Explain the structure and function of Mitochondria.
12 a. Mention the different types of Collenchyma.
(Or)
b. Describe the structure of Xylem tissue.
13 a. Describe the structure of Dicot Leaf.
(Or)
b. Write an account on nodal structure in Angiosperms.
14 a. Explain the basic principles and mechanism of light Microscope.
(Or)
b. What are the parts of a compound Microscope? Mention their uses.
15 a. Mention the properties of fixatives.
(Or)
b. Classify stains based on their sources.

Part – C : (3 × 10 = 30)
Answer any three questions
16. Describe the ultrastructure of Plant cell.
17. What are Meristems? How are they classified based on origin, position, function and plane of cell division?
18. Explain the Anomalous Secondary growth in Boerhaavia with diagram.
19. Write a detailed account on Electron Microscope.
20. Define Maceration. Explain the methods employed for Maceration of woody tissue and preparation of permanent slides.

EMBRYOLOGY OF ANGIOSPERMS

1. Nucellus.
2. Tetrasporic.
3. Suspensor.
4. Torpedo embryo.
5. Parthenocarpy.
6. Apospory.
7. Cell culture.
8. Organogenesis.
9. Embryoids.
10. Synthetic seeds.

Part – A :
1. Biofertilizers.
2. SCP.
3. Agar-Agar.
4. Heterothalism.
5. Haustorium.
6. Usnea.
7. White Rust.
8. Gemma Cup.
9. Fungicide.
10. Horn Worts.

Part – B : (5 × 5 = 25)
Answer all questions
11 a. Write the methods of Reproduction in Volvox.
(Or)
b. Explain the structure of fungal mycelium.
12 a. Present the general characteristics of ascomycetes.
(Or)
b. How are lichens classified based on structure?
13 a. Give an account of the causes symptoms and control of citrus cancer.
(Or)
b. Give an account of the causes, symptoms and control measures of Bunchy top of Banana.
14 a. What is biological control? What are its advantages?
(Or)
b. Explain the physical methods of plant protection.
15 a. Describe the reproduction found in Anthoceros.
(Or)
b. Describe the general character of Bryophytes.

Part – C : (3 × 10 = 30)
Answer any three questions
16. Write an essay on the economic importance of algae.
17. What are mycorrhizae? What is their significance?
18. Write notes on :
a) Tikka desease of ground nut.
b) Little leaf of Brinjal.
19. In what way are quarantine measures helpful in the control of pests and diseases?
20. Explain the life history of polytrichum.