Question

Observe the diagram and answer the following questions.
i) Name male and female reproductive parts of the above figure.
ii) Write the names of (1) and (2) in the diagram.

Answer 1

Hint: External plant structures such as leaves, flowers, fruits, stem, roots and seeds are known as plant organs. These plant organs are divided as two major groups that are Sexual reproductive parts and other are vegetative parts. Flowers, flower buds, fruits and seeds are sexual reproductive parts of a plant.

Complete answer:
The given diagram is of a flower. Sexual reproduction is the sole function of flowers. It is the most showful part of the plant. The beauty and fragrance of flowers is mainly to attract pollinators which help in the process of reproduction.

i) Male and female reproductive parts of the flower: As we know now that flower is a reproductive part of the plant, it’s main parts are Stamen and Pistil. The stamen is the male flower part and pistil is the female flower part.
Male reproductive part of the flower that is stamen consists of anther and filament. The filament is a thin hair like structure and on the top of it is attached a small round pouch which is the anther. This anther part of the plant produces pollen.
Female reproductive part of a plant is called the Pistil, it is present in the centre of the flower. This female part of the plant consists of ovules that form seeds after the process of pollination.
Pistil consists of style, stigma and ovary. Coming out of the central portion of the pistil is a tube like structure which is called as style and at the bottom side it is attached to an ovary that produces ovules. On the top of the style a sticky surface is present where the pollen lands is called stigma.
When pollen lands on a sticky surface of stigma a pollen tube grows through the style to join the ovary part so that it can fertilize the ovule. When fertilization takes place the ovary converts into fruit and the ovules turns into seed.

ii) Part 1 and 2 in the diagram are named as 1.Sepals and 2. Petals
A sepal is a part of the flower of flowering plants that is usually green in colour. The main function of sepal is to protect the flower in bud stage and play a role in supporting the petals when they bloom. Collectively the sepals are known as calyx and it is the outermost whorl of parts that form a flower.
Petals are modified leaves that surround the reproductive parts of flowers. These are very brightly coloured and unusually shaped to attract pollinators. All the petals of the flower together are known as corolla.

Note:
In asexual reproduction male and female gametes do not fuse the way they fuse in sexual reproduction. Asexual reproduction may occur through Binary Fission, budding, fragmentation, spore formation, regeneration and vegetative propagation.