Question

The proximal end of the stamen is attached to the …………….. or …………… part of the flower.

Answer 1

Hint:Stamen is the male reproductive part of the flower, which contains anther and filament. The filament is a long pipe-like structure that is attached to the two-lobed structure of the anther and the anther is a sac-like structure which is called microsporangia and they are four in number. Microsporangia is the site of the production of pollen grains (male gametes).

Complete answer: Flower is the reproductive organ of the plants belonging to the angiosperms. The flower consists of a male reproductive organ that is, the stamen, and a female reproductive organ is a pistil.
At the base of the stamens, small vesicles that are able to secrete some chemicals are present which are called nectaries, which are used by many insects as their food. The whole combination of these stamens is known as androecium.
In the anther, special cells which are known as sporogenous cells differentiate further by the cell division process known as meiosis, which is a reductional process in which the number of chromosomes reduces to half. And the production of microspore takes place which further gives rise to pollen grain at the end.

The image represents an androecium of a flower and the development of the male gamete that is pollen grain.

So, the proximal end of the stamens are attached to the thalamus or petals.

Note: Pollen dispersal is very important for the successful reproduction of the plants in which male and female reproductive parts are not at the same flower or same plant. Pollen dispersal can take place through air, wind, or insects.