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How can you contrast a pollen grain and a seed?
Pollen grain after meiosis in the microspore mother cell and has haploid set of chromosomes. A seed develops from ovule after fertilization, in which the number of chromosomes get doubled. Pollen grain is unicellular, microscopic structure, a seed is multicellular macroscopic structure.
How does pollen grain compare to a microspore?
A pollen grain is a mature microspore that consists of two cells (generative cell and tube cell) enclosed within a protective wall. A microspore is a haploid cell produced in the sporangia of seed plants that eventually develops into a pollen grain through the process of microsporogenesis.
What is a pollen tube?
A pollen tube is a structure that develops from a pollen grain after it lands on the stigma of a flower. It grows down through the style of the flower to reach the ovary where it delivers the male gametes for fertilization to occur. This process is essential for plant reproduction.
When a flower is pollinated a grain of pollen falls on a what?
When a flower is pollinated, a grain of pollen falls on the stigma, which is the tip of the female reproductive structure called the pistil.
The pollen grain replaces what structure in the life cycle of seedless plants?
"Pollination is the transfer of the pollen grain from the anther to the stigma, where the pollen grain germinates, and becomes the mature male gametophyte." Source= Inquiry into Life Lab Manual. Therefore, the answer may be the mature male gametophyte...OR that it replaces a males sperm, depending on what your teacher is looking for. Hope this helps
How can you contrast a pollen grain and a seed?
Pollen grain after meiosis in the microspore mother cell and has haploid set of chromosomes. A seed develops from ovule after fertilization, in which the number of chromosomes get doubled. Pollen grain is unicellular, microscopic structure, a seed is multicellular macroscopic structure.
Inside what structure do the sperm of seed plants form?
The sperm of seed plants form inside the pollen tube, a structure that develops from the pollen grain. The pollen tube grows towards the ovule to deliver the sperm cells for fertilization.
What structure will pass down the pollen tube?
the pollen grain
How does pollen grain compare to a microspore?
A pollen grain is a mature microspore that consists of two cells (generative cell and tube cell) enclosed within a protective wall. A microspore is a haploid cell produced in the sporangia of seed plants that eventually develops into a pollen grain through the process of microsporogenesis.
What structure developes into pollen grain?
Microspore
What is a pollen tube?
A pollen tube is a structure that develops from a pollen grain after it lands on the stigma of a flower. It grows down through the style of the flower to reach the ovary where it delivers the male gametes for fertilization to occur. This process is essential for plant reproduction.
Does sperm cell grows out of a pollen grain?
No, sperm cells do not grow out of a pollen grain. In plants, sperm cells are produced within the pollen grain, and they are involved in fertilization when the pollen grain reaches a female reproductive structure. Each pollen grain contains two sperm cells.
The structure that grows from a pollen grain to an ovule and enables a sperm to pass directly to an egg?
pollen tube
When a flower is pollinated a grain of pollen falls on a what?
When a flower is pollinated, a grain of pollen falls on the stigma, which is the tip of the female reproductive structure called the pistil.
A structure grown by a pollen grain that contains two sperm nuclei is called what?
The structure grown by a pollen grain that contains two sperm nuclei is called the pollen tube. The pollen tube is responsible for delivering the sperm nuclei to the ovule for fertilization in plants.
Pea plants contain a male reproductive structure called the?
pollen grain
The pollen grain replaces what structure in the life cycle of seedless plants?
"Pollination is the transfer of the pollen grain from the anther to the stigma, where the pollen grain germinates, and becomes the mature male gametophyte." Source= Inquiry into Life Lab Manual. Therefore, the answer may be the mature male gametophyte...OR that it replaces a males sperm, depending on what your teacher is looking for. Hope this helps
