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Fertilization in flowering plants typically requires only one pollen grain to fertilize an ovule, leading to the formation of a seed. Once a pollen grain lands on a compatible stigma, it germinates and forms a pollen tube that carries sperm cells down to the ovule. If successful, one sperm cell will fuse with the egg cell, resulting in fertilization. This efficient process ensures genetic diversity while minimizing the resources needed for reproduction.
What else can I help you with?
Does pollen contain the sporophyte?
No, pollen does not contain a sporophyte. Pollen grains are the male gametophytes of seed plants, which produce sperm cells needed for fertilization. The sporophyte generation of seed plants is the dominant phase of the life cycle and produces the pollen.
Why do gymnosperms do not need water for fertilization?
Gymnosperms do not need water for fertilization because their male gametes are carried by pollen grains, which can be transported by the wind. This allows for fertilization to occur without the need for water.
How many sperms are need to make 10 seeds?
In plants, fertilization occurs when one sperm cell from a pollen grain fuses with an egg cell to form a seed. Therefore, only one sperm cell is needed to fertilize one egg cell and produce a seed.
What does a pollen grain and ovule each contain?
Pollen grains contain the male gametes required for sexual reproduction of a plant/ flower. These are haploid, and only contain half the full set of chromosomes; the other half is contributed by the female gamete (or ovule).A grain of pollen contains:a larger vegetative cell (also called the tube cell) inside of which is aa smaller germ cell (also called the generative cell).The pollen grain "germinates" on the stigma of the receptive flower and grows down the style, once it reaches the ovule the germ cell/ nucleus fuses with the nucleus of the ovule and an embryo is formed
Where does pollen grains form?
Pollen grains are formed within the anthers of flowering plants, which are the male reproductive structures where pollen grains develop and mature. The process of pollen grain formation is called microsporogenesis.
Why used the mature pollen grain in pollen germination experiment?
this is because premature pollen grain do not contain the sperm cell for fertilization. only the generative nucleus in mature pollen grain will divide mitosisly to form sperm cell for fertilization
Why do plant produce so many pollan grains when only one pollen grain is needed for fertilization?
Because some won't find mates. To have the greatest chance of 'breeding' as many times as possible.
Does pollen contain the sporophyte?
No, pollen does not contain a sporophyte. Pollen grains are the male gametophytes of seed plants, which produce sperm cells needed for fertilization. The sporophyte generation of seed plants is the dominant phase of the life cycle and produces the pollen.
Can a pollen grain of a flower have one lobe?
No, after a research it is not seen that a pollen grain of a flower have only one lobe. Commonly pollen grain have two or three lobes.
Why do gymnosperms do not need water for fertilization?
Gymnosperms do not need water for fertilization because their male gametes are carried by pollen grains, which can be transported by the wind. This allows for fertilization to occur without the need for water.
How many sperms are need to make 10 seeds?
In plants, fertilization occurs when one sperm cell from a pollen grain fuses with an egg cell to form a seed. Therefore, only one sperm cell is needed to fertilize one egg cell and produce a seed.
What does a pollen grain and ovule each contain?
Pollen grains contain the male gametes required for sexual reproduction of a plant/ flower. These are haploid, and only contain half the full set of chromosomes; the other half is contributed by the female gamete (or ovule).A grain of pollen contains:a larger vegetative cell (also called the tube cell) inside of which is aa smaller germ cell (also called the generative cell).The pollen grain "germinates" on the stigma of the receptive flower and grows down the style, once it reaches the ovule the germ cell/ nucleus fuses with the nucleus of the ovule and an embryo is formed
Where does pollen grains form?
Pollen grains are formed within the anthers of flowering plants, which are the male reproductive structures where pollen grains develop and mature. The process of pollen grain formation is called microsporogenesis.
What is the difference between germination and pollination?
Pollination occurs when pollen reaches the pistil (female parts) of the flower. Fertilization occurs when the sperm cells of the flower fuses with the egg. Germination happens when the conditions are right the plant embryo germinates and begins to develop into a young plant. It is the only stage that does not include fertilization. Pollination is the first step fertilization the second and germination the third and final step.
How many sperms are needed for fertilization?
Only one.
Do angiosperms require water for fertilization?
Yes Edited answer: No, only crptogames need water for fertilization. In higher plants like angiosperms, the gametes are non-motile and male gametes reach near the egg for fertilization with the help of pollen tube.
Is pollen living or non living?
Pollen is considered non-living because it is a structure produced by plants for the purpose of reproduction. It consists of cells that carry genetic material but does not exhibit the characteristics of living organisms like growth, metabolism, or response to stimuli.
