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The pollen tube nucleus directs the growth of the pollen tube down through the pistil to the ovary
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What is the function of the sperm nucleus in plants?
the sperm nucleus is found in pollen grains and directs the growth of the pollen tube to the ovule in the ovary, it then degenerates
What is the fate of the tube nucleus in the pollen tube?
Tube nucleus generates after guiding the pollen tube into the embryo sac
How does fertilization take place in a flower?
the pollen grain lands ot the tip of pistle called as stigma and then pollen tube from pollen grain germinates and it reaches the ovary through style(containing 2 male gamets).. then fertilisation takes place... or is when the male sex cells inside the pollen grains fuses with the female sex cells inside to produce a seed embryo Pollination transfers the pollen grain to the stigma. However, for hertilisation to take place, the nucleus of the pollen grain must fuse with the nucleus of the ovum, which is inside an ovule in the ovary. To transfer the nucleus to the ovum, the pollen grain grows a tube, which digest its way through the tissue of the style and into the ovary. Here it grows around the opening in an ovule. The tip of the tube dissolves and allows the pollen grain nucleus to move out of the tube and into the ovule. Here it fertilises the ovum (egg cell) nucleus.
A pollen grain forms a tube leading to the flower's what?
Pollen grows a tube that travels down to the flowers ovary. From there, the nucleus of the pollen grains passes through the pollen tube to join the nucleus of the ovule to fertilize.
What role do the pollen tube play in fertilization?
pollination helps
What is the function of a pollen tube?
The long tube
What are the steps that happen between pollination and fertilization?
After pollination, the pollen grains germinate and form a pollen tube that grows through the style towards the ovary. Once the pollen tube reaches the ovary, it enters the embryo sac and delivers the sperm cells. Fertilization occurs when one sperm cell fuses with the egg cell to form a zygote, while another sperm cell fuses with a polar nucleus to form the endosperm, which provides nourishment to the developing embryo.
How does fertilization take place in flowers?
the pollen grain lands ot the tip of pistle called as stigma and then pollen tube from pollen grain germinates and it reaches the ovary through style(containing 2 male gamets).. then fertilisation takes place... or is when the male sex cells inside the pollen grains fuses with the female sex cells inside to produce a seed embryo Pollination transfers the pollen grain to the stigma. However, for hertilisation to take place, the nucleus of the pollen grain must fuse with the nucleus of the ovum, which is inside an ovule in the ovary. To transfer the nucleus to the ovum, the pollen grain grows a tube, which digest its way through the tissue of the style and into the ovary. Here it grows around the opening in an ovule. The tip of the tube dissolves and allows the pollen grain nucleus to move out of the tube and into the ovule. Here it fertilises the ovum (egg cell) nucleus.
After pollen grows a tube down the style?
Pollen grows a tube that travels down to the flowers ovary. From there, the nucleus of the pollen grains passes through the pollen tube to join the nucleus of the ovule to fertilize.
What happens when the pollen tube joins the ovule?
If The Pollen Tube Joins The Ovules They Will Have Fertilization And At The End After The Ovules Will Become The Seeds It Is One Or Many Seeds
What are the steps of fertilization in flowering plants?
Fertilization in plants is achieved by union of male gamete with an egg nucleus. The first step in fertilization is formation of male and female gametes, Second step is transfer of male gametes containing pollen to stigma of female reproductive organ by pollination. The third step is germination of pollen grain for movement of male gamete to the vicinity of female gamete. The fourth step is the union of the nucleus of male gamete with egg nucleus in the embryo sac. The fourth step of fertilization in angiosperms is the act of double fertilization. During this process one of the two gametes released by a pollen tube fuses with secondary nucleus. The secondary nucleus is formed by fusion of two nuclei of embryo sac. Thus double fertilization is also called triple fusion.
How do the sperms nuclei in a pollen grain reach the egg nucleus in an ovule?
When they land on the style they begin to bore their way through the stigma all the way to the ovule. Through the tube made by the tube nucleus of the pollen grain: each pollen grain has two nuclei, one called generative nucleus which combines with the nuclei of the ovule, and the other called tube nucleus tube nucleus which forms a tube that penetrates the stigma till it reaches ovule then it degenerates.
