CBSE Class 10 Science 2017 · Paper 531/1 · Question 21

Diagram: the longitudinal section of a bisexual flower, with the ovary, anther, style, stigma and filament labelled (see the figure). The anther and filament form the stamen, the male part. Female reproductive organs: the stigma, the style and the ovary, which together make up the pistil (carpel). Stigma: receives the pollen grains during pollination; its surface is often sticky. Style: joins the stigma to the ovary; the pollen tube grows down through it to carry the male germ-cell to the ovule. Ovary: contains the ovules, each with a female germ-cell (egg); after fertilisation the ovules become seeds and the ovary develops into the fruit.