PLANTS
PLANT REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Bees help to provide nectar for flowers.
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Male cells from pollen tube fuse with ovules in the ovary.
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Pollen grains get suck on the stigma
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The wind blows pollen grains from flower
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Detailed explanation-1: -From the anther the pollen grains are first deposited on the pistil’s surface, the stigma . There they germinate and form pollen tubes, which grow downward through the style toward the ovules. Fertilization occurs as a sperm cell in a pollen tube fuses with the egg cell of an ovule, resulting in a plant embryo.
Detailed explanation-2: -When the pollen tube reaches an ovule, it releases the male gametes. Male cells are released into the ovule for the fertilization with the female egg cell and thus the zygote is formed. After this process of fertilization, the ovary develops into fruit and ovule into seeds.
Detailed explanation-3: -The pollen tube penetrates the style and reaches the ovary. Male nucleus is transferred through this pollen tube. Finally, fusion of male and female nuclei takes place inside the ovary. This step is called fertilization.