What is the function of the stamens?
What is the function of the stamens?
Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther. Anther: The part of the stamen where pollen is produced.
What is the function of Microsporangium?
Unsourced material may be challenged and removed. Microsporangia are sporangia that produce microspores that give rise to male gametophytes when they germinate. Microsporangia occur in all vascular plants that have heterosporic life cycles, such as seed plants, spike mosses and the aquatic fern genus Azolla.
What is the function of pollen grains?
Pollen grains carry male reproductive cells (gametes) in a plant and are haploid microgametophytes. Their main function is in the transferring of the male gametes to their female counterparts (ovules – female reproductive cells) in the embryo sac. It thereby facilitates sexual reproduction to occur in the plant.
What is function of stamen in biology?
Stamens are the male reproductive organs of flowering plants. They consist of an anther, the site of pollen development, and in most species a stalk-like filament, which transmits water and nutrients to the anther and positions it to aid pollen dispersal.
What is the function of stamen and carpel in flower?
The stamens are male reproductive structures that produce pollen. The carpels are female reproductive structures that produce egg cells and protect a developing baby plant, or embryo.
Is Microsporangium and pollen sac same?
Male Gametophyte (The Pollen Grain) In a plant’s male reproductive organs, development of pollen takes place in a structure known as the microsporangium (Figure 5). The microsporangia, which are usually bi-lobed, are pollen sacs in which the microspores develop into pollen grains.
What is the function of epidermis in Microsporangium?
* Epidermis- It is a single layer and outermost layer. The main function lies in the protection of pollen.
What is the function of germ pore in pollen grain?
The germ pores are apertures in the exine layer of the pollen grain where the sporopollenin is absent. The germ pore helps in the formation of the pollen tube and the release of the male gametes during fertilisation. There are usually three germ pores in dicots (tricolpate) and one in monocots (monocolpate).
What is the function of pollen grains Class 7?
Answer: The main function of pollen grains in flowering plants is to transfer the male gametes to the stigma of a flower. Hence, they help in reproduction in flowering plants. A pollen tube is formed and the male gametes are carried to the ovule for fertilisation.
How do the stamen and pistil help in reproduction?
Flowers have male parts called stamens that produce a sticky powder called pollen. Flowers also have a female part called the pistil. Seeds are made at the base of the pistil, in the ovule. To be pollinated, pollen must be moved from a stamen to the stigma.
How does the stamen help with reproduction?
The main function of the stamen is to produce the pollen grains, which house male gametes, or sex cells, necessary for reproduction. The anther is located within the stamen where these gametes are created.
