NEET BIOLOGY

PLANT PHYSIOLOGY

PLANT GROWTH

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What role do insects play in the fertilization process?
A
they transport seeds from the tree to the ground
B
they collect nectar from the interior parts of plants
C
they deliver pollen from the stamens of plants to the ovaries of other plants
D
they eat the fruit, exposing the seeds so that they can sprout and grow
Explanation: 

Detailed explanation-1: -When insects land on a flower, pollen grains tend to stick to their bodies. The insect then moves from one to another flower of the same species, pollen gets transferred to the stigma of flowers and hence causing pollination.

Detailed explanation-2: -Insects play a vital role in the fertilization process of many plants. They carry pollen from one flower to another, which fertilizes the flower and creates a seed which will grow into a new plant.

Detailed explanation-3: -In wind-pollinated flowers, the produced pollen grains are smaller and lighter in weight, which can be carried by the wind easily. In insect-pollinated flowers, the produced pollen grains are larger in size, sticky and spiny, which helps the insect to carry the pollen grains.

Detailed explanation-4: -Pollination is the process that brings these male and female gametes together. Pollen can’t get from the anthers to the ovules on its own, so pollination relies on other things to move the pollen. The wind or animals, especially insects and birds, pick up pollen from the male anthers and carry it to the female stigma.

Detailed explanation-5: -When pollination happens between flowers of different plantsit leads to varieties of flowers. Therefore pollination acts a major role in diversity. The pollen grains are carried by bees and other creatures to places far away and other flowers and plants as well. This leads to diversity.

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