what is pollen course hero

How do you explain pollen?

pollen, a mass of microspores in a seed plant appearing usually as a fine dust. Each pollen grain is a minute body, of varying shape and structure, formed in the male structures of seed-bearing plants and transported by various means (wind, water, insects, etc.) to the female structures, where fertilization occurs.

What is pollen and its function?

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 a pollen grain Class 12?

The pollen grain is the male gametophyte which contains the male gametes. The pollen grain is surrounded by two layers as exine which forms the outer layer and intine which forms the inner layer. The generative cell divides to form the two male gametes. The vegetative cell is responsible for the providing nutrition.

What are pollen grains for Class 4?

What are Pollen Grains? Pollen grains are microscopic structures, which bear androecium – a male reproductive organ of a flower. The interior section of pollen grain contains cytoplasm along with the tube cell, which converts into a pollen tube and the generative cell releases the sperm nuclei.

What is pollen in flower?

Pollen is essential for sexual reproduction of flowering plants and plants that produce cones. Each pollen grain contains male gametes necessary for fertilisation. The scientific study of living and fossilised pollen grains is known as palynology. The male part of flowering plants is the stamen.

What is pollen for kids?

Pollen is a fine powder produced by certain plants. During the spring, summer, and fall seasons, it is released into the air and picked up by the wind. The wind carries it to other plants so they can make seeds. But while it's traveling in the wind, pollen gets into the air we breathe.

What is pollination class 10th?

What is Pollination? Pollination is a method where pollen grains are picked from an anther, which is the male part of a flower and transferred to the flower's female part called the stigma. To make the pollination work successfully, the pollen grains must be transferred from the same species of flower.

What is pollen tube 7th?

Definition of pollen tube : a tube that is formed by a pollen grain and conveys the sperm nuclei to the embryo sac of an angiosperm or the archegonium of a gymnosperm.

What does pollen grain mean?

Pollen is essential for sexual reproduction of flowering plants and plants that produce cones. Each pollen grain contains male gametes necessary for fertilisation. The scientific study of living and fossilised pollen grains is known as palynology.

What is called pollination?

Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma. The goal of every living organism, including plants, is to create offspring for the next generation. One of the ways that plants can produce offspring is by making seeds.

How do you say pollen?

Break 'pollen' down into sounds: [POL] + [UHN] - say it out loud and exaggerate the sounds until you can consistently produce them.

Is pollen a seed?

Pollens are very different from seeds because they are fine and powdery. They contain the microgametophytes or the gametes (comparable to the sperm cells) of seed plants. Like ordinary seeds, pollens can also have a hard coating for the pollen grain to provide protection during movement (pollination).

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