Write the description of gynoecium in various plants.

5

(a)

Describe the modification of stem with suitable examples.
(a) Tendrils
(b) Thorns
(c) Fleshy stems

5

(a)

Describe the modification of stem with suitable examples. "Fleshy stems"

5

(a)

Stolon,offset and rhizome are different forms of stem modification. How can these modifiedforms of stem be distinguished from each other?

5

(a)

Explain with suitable examples the different types of phyllotaxy.

5

(a)

Describe the various types of placentations found in flowering plants.

5

(a)

Draw the labelled diagram of the following:
(i) gram seed
(ii) V.S. of maize seed

5

(a)

Describe the internal structure of a dorsiventral leaf with the help of labelled diagrams.

5

(a)

What is a tissue? Describe different types of simple tissues in plants.

5

(a)

With suitable diagram explain the structure of dicot stem. Write main differences between dicot and monocot stems.

5

(a)