CBSE Class 10 Science 2019 · Paper 31/2/2 · Question 7

Pollination is the transfer of pollen grains from the anther (stamen) to the stigma of the same flower or of another flower. Fertilisation is the fusion of the male germ cell (from the pollen grain) with the female germ cell (egg) in the ovule. Pollination comes first and takes place on the stigma, outside the ovary, often with the help of agents such as wind, water or insects; fertilisation follows after a pollen tube has grown from the pollen grain through the style to the ovule, and takes place inside the ovule. Site of fertilisation: the ovule, inside the ovary. Product of fertilisation: the zygote.