C. S. E-Mains 2007: Botany
Paper-I
Section A

Answer any three of the following in not more than 200 words each: (20 × 3 60)

Describe the types of plant diseases caused by viruses. Explain their control measures.

Describe ultrastructure of flagella in Algae.

Describe and draw labelled diagrams of steles in pteridophytes with examples.

Enumerate economic uses of fungi in India.

Write critical notes on the following: (20 × 3 60)

Algae as a food, feed and medicine

Distribution of bryophytes and pteridophytes in deciduous and evergreen forests in India

Applications of plant tissue culture in forestry and agriculture

Write notes on the following: (20 × 3 60)

Reproductive stages in Oedogonium

Asexual reproduction in Aspergillns

Ultrastructure of a bacterial cell

How do the following differ from each other: (20 × 3 60)

Fungal hyphae and Algal filament

Sporophytes of Anthoceros and Funaria

Prothalli of Selaginella and Nephroiepis

Section B

Answer an three of the following in not more than 200 words each: (20 × 3 60)

Discuss secondary growth in lianas.

Give an account of the use of pollen morphological characters in systematics.

Describe the importance of ethnobotany in the welfare of tribal and rural people.

Compare the outline of system of classification of angiosperms proposed by Hutchinson with the system proposed by Bentham and Hooker.

Write notes on the following: (20 × 3 60)

Botanical name, active constituents and uses of any five commercial medicinal plants of India

Secondary growth in woody monocors

Origin of cultivated plants with reference to Vavilov's theory

Draw neat and labelled diagrams of the following: (20 × 3 60)

Stomata of sunflower and maize

Male cone and Microsporophyll of Pinus

Male and female flower of Euphorbia

Answer the following: (30 × 2 60)

Give an account of diagnostic characters of Liliaceae and Palmae with suitable examples.

Describe the commercial importance of gum, resin and dye yielding plants in India.