(i) Identify the parts 'X' and 'Y' in the figure given below : (ii) Name the yellowish coloured structures…
(i) Identify the parts 'X' and 'Y' in the figure given below :
(ii) Name the yellowish coloured structures produced by the part labelled as 'Y'.
(iii) Write the name of the process by which these are transferred to the part labelled as 'X'.
(iv) Explain the process of seed formation in a flowering plant.
Solution
(a) (i) 'X' - Stigma 'Y' - Anther
(ii) Pollen grains
(iii) Pollination
(iv) After the transfer of pollen grains from anther into stigma, a pollen tube grows out of the pollen grain and travels through the style to reach the ovary. Male germ cell fuses with the female germ cell to form a zygote which divides several times to form an embryo within the ovule. The ovule develops a tough coat and is gradually converted into a seed.
