Pollination
Pollination
Pollination: The main function of the flower is to produce fruits and seeds. The fruits and seeds are formed in a flower by the process of pollination and fertilization. The transfer of pollen grains from the another to the stigma of a pistil is called pollination. Pollination is done by insects, wind and water. When pollen grains fall on the stigma, they move down through the tube called style and reach ovary. Inside the ovary, the male sex cells present in the pollen grains fuse with female sex cells present in the ovules. The fusion of of male and female gametes is called as fertilization.
Which of the following are correct ? (a) The transfer of pollen grains from the anther to the stigma is known as pollination. When the anthers grow and mature; they burst open and release pollen grains (male gametes). (b) The pollen grains are carried to the stigma (female part) of another flower (of the same type) by insects, birds, wind or water. (c) Insects and birds visit flowers to collect nectar and they are called as pollinators. | |||
| Right Option : D | |||
| View Explanation | |||
The migration of pollen grains to stigma is called as ___________________ | |||
| Right Option : B | |||
| View Explanation | |||
For self - pollination, a flower should be __________________ | |||
| Right Option : D | |||
| View Explanation | |||
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