Sexual Reproduction in Plants and Plant Anatomy

Calyx is formed by Sepals.

Corolla is formed by petals

Anther is the pollen bearing structure of flower as it produces thousands of pollen grains, which give rise to the male gametes.

Stamen is a part of androecium of flower.

Corolla consists of petals, which can be of different colours.

Flower bears male and female reproductive parts which are involved in sexual reproduction.

Pistil or gynoecium bears ovary in a flower.

Scion is a cutting of young stem used for grafting.

Pollination involves transfer of gametes (pollens) from male reproductive part (anther) to female reproductive part (stigma) for fertilization.

Micropyle is an opening at the lower end of the ovule.

Pollens that are pollinated by wind are produced in large numbers and are dusty, minute and light in nature.

Radicle is a part of embryo of plants.

Pollination is the process of transfer of pollen grains from anthers to stigma of flower.

Mechanism of cross pollination can be used to develop new and better varieties of plants by the process of hybridization.

Plumule is a part of embryo that gives rise to shoots.

Radicle of embryo give rise to roots and thus forms the root system of the plants.

The growing root and shoot utilize the food stored in cotyledon

Self pollination does not produce variation in plants but leads to genetic uniformity.

Pistil develops pollen tube when pollen reaches stigma.

Insects help in both self and cross pollination.