Explain the following in one or two sentences:

Pneumatophore roots

Tendril

False fruit

Monocarpic plant

Sedative

Give botanical names of the plant each that

yields coffee

yields teak wood

yields cassava starch

has the largest flower

yields vinblastine

Mention the morphology of the plant part from which the following products are obtained:

Opium

Coir

Cinnamon

Sweet potato (edible part)

Mango (edible part)

2. Draw labelled diagrams of any two of the following:

Any two types of sclereids

T.S. Anther

V.S. microsporophyll of Cycas

V.S. root apex of Zea mays

Describe with the help of diagrams, the diagnostic features of floral parts of Brassicaceae/Lamiaceae.

Describe the various components of xylem tissue.

Write an account of the extraction of vegetable oils.

Distinguish between any two of the following:

Bast fibres and Surface fibres

Assam tea and China tea

Monocot root and Dicot root

List any four spices along with their botanical name and describe cultivation and uses of any two of them.

Mention five diagnostic features of Liliaceae/Musaceae.

Describe the pollination and fertilization in Pinus.

What do you understand by fumitory and masticatory materials Describe the three types of true narcotics which are isolated from Indian Hemp.

Discuss how modifications of stem, root and leaf in angiosperms have made them successful plants on the Earth.

Discuss the importance of legumes in our diet and in the economy of nature.

Describe the diagnostic features of Apiaceae/Asclepiadaceae.

How is sugar manufactured from cane sugar?

9. Differentiate between Japonica rices and Indica rices. Describe the breeding programme for improvement of rice.