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Pollen grains are transferred to which part of pistil?
Ovule
Stigma
Ovary
Style
Stigma
In angiosperms (flowering plants), the stigma is the receptive portion of the carpel/pistil designed to capture pollen grains. Once the pollen lands on the sticky surface of the stigma, it germinates to form a pollen tube that grows down through the style to reach the ovary for fertilization.
In angiosperms (flowering plants), the stigma is the receptive portion of the carpel/pistil designed to capture pollen grains. Once the pollen lands on the sticky surface of the stigma, it germinates to form a pollen tube that grows down through the style to reach the ovary for fertilization.
The process of transfer of pollen grains from the anther to the stigma is called Pollination, which is a fundamental biological concept in Plant Physiology (Botany).
The pistil consists of three main parts: Stigma (top), Style (middle), and Ovary (base).
Stigma provides a chemical signal and a sticky surface to trap compatible pollen.
Pollination is the precursor to fertilization, resulting in the formation of seeds and fruits.
Ovule: Contains the female gametophyte; it develops into a seed after fertilization.
Ovary: The enlarged basal portion of the pistil that matures into fruit.
Style: The stalk that connects the stigma to the ovary, through which the pollen tube grows.
Option B is the correct site of landing; options A, C, and D are internal parts reached only after successful germination on the stigma.
B is correct тАФ Pollen grains are primarily transferred to the stigma of the pistil to initiate the fertilization process.
In competitive biology, remember that 'Stigma' refers to the landing platform, while 'Anther' (in the stamen) is the source of pollen. This distinction is frequently tested in plant reproduction cycle questions.
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