How many of the following statements are valid to angiosperms?
I. The ovules mature into seeds, whereas the ovaries develop into the fruits.
II. The primary endosperm nucleus, which is present in the embryonic sac, is diploid.
III. Stamen is the male reproductive part of a flower.

Tick (√ ) the correct answer:

(a) The reproductive part of a plant is the

(i) leaf

(ii) stem

(iii) root

(iv) flower

(b) The process of fusion of the male and female gametes is called

(i) fertilisation

(ii) pollination

(iii) reproduction

(iv) seed formation

(c) Mature ovary forms the

(i) seed

(ii) stamen

(iii) pistil

(iv) fruit

(d) A spore producing plant is

(i) rose

(ii) bread mould

(iii) potato

(iv) ginger

(e) Bryophyllum can reproduce by its

(i) stem

(ii) leaves

(iii) roots

(iv) flower

(a) Draw a diagrammatic sectional view of a mature anatropous ovule and label the following parts in it.
(i) That develops into the seed coat
(ii) That develops into an embryo after fertilization
(iii) That develops into an endosperm in an albuminous seed
(iv) Through which the pollen tube gain entry into the embryo sac
(v) That attaches the ovule to the placenta
(b) Describe the characteristic features of wind-pollinated flowers.