1. Write short notes on the following:
(a) Mycorrhiza
(b) Microsporogenesis
(c) Embryogeny
(d) Medicinal uses of Taxus
(e) Insectivorous plants
(f) Double fertilization
(g) Haustoria
(h) Phylloclade
2. (a) Write the differences between gymnosperms and angiosperms.
(b) Describe cycles in gymnosperms with proper diagrams.
3. Describe megasporangium, megasporogenesis and female gametophyte.
4. Describe how Gnetum resembles angiosperms in many respects?
5. a) What is resin and what are its sources?
b) Give the name of five major timber yielding conifers of India.
6. Draw the labeled diagram of the following:
a) T.S. of root of Orchid
b) Structure of shoot apex
c) C.S. of hypocotyl of Ricinus
d) Colloroid root of Cycas
7. Write a brief account on the economic importance of families Rubiaceae and Asteraceae.
8. Differentiate between following pair of terms:
a) a) Storied and nonstoried cambium
b) Lamellar and lacunar collenchymas
c) Brachysclereid and macrosclereid
d) Tracheids and vessel elements
e) Simple and compound sieve areas
1. Draw well labelled diagrams of the following:
(i) Structure of shoot apex
(ii) Component of phloem
(iii) T.S. of anther
(iv) Coralloid root of Cycas
2. (a) Why is Ginkgo biloba considered a living fossil? Explain.
(b) Describe the functions performed by epidermis.
3. Describe in detail the economic importance of gymnosperms.
4. (a) Give the general characteristics of Conifers. Describe in brief the structure of male and female cone of Pinus.
(b) How does Gnetum resemble angiosperms in many aspects.
5. Write short notes on the following:
(i) Trichomes
(ii) Pneumatophores
(iii) Parthenocarpy
(iv) Carnivorous plants
6. Differentiate between the following:
(i) Primary and secondary root
(ii) Simple and compound fruit
(iii) Androecium and Gynoecium
(iv) Dicot and Monocot stem
7. (a) Write botanical names of the following plants:
(i) Rice
(ii) Groundnut
(iii) Pea
(iv) Mango
(v) Walnut
(b) Describe any two timber yielding trees.
8. Name the medicinal plants found in India. Describe any two of them giving their habitat, distribution, morphological features and uses.
9. (a) Enlist the major diagnostic features of the family Brassicaceae.
(b) Give the economic importance of the members of family Asteraceae.
10. (a) Name the following:
(i) Smallest flowering plants
(ii) Massive living tree
(iii) Plant which is a root parasite
(iv) Saprophytic plant
(v) Plant with largest leaf
(b) Describe two plants in which spices are obtained from rhizome.
Help?
