North Carolina Bee School Practice Exam

Pollination primarily involves the transfer of pollen grains from which part of the flower to which other part?

1. Filament to Stigma

2. Anther to Stigma

3. Petal to Ovule

4. Receptacle to Style

The correct answer is: Anther to Stigma

Pollination is a crucial process in the reproductive cycle of flowering plants, and it primarily involves the transfer of pollen grains from the anther to the stigma. The anther is the part of the male reproductive organ (stamen) that produces pollen, which contains the male gametes. The stigma, located at the top of the female reproductive organ (pistil), is the surface that receives pollen. For pollination to occur successfully, the pollen grains must land on the stigma, where they can germinate and facilitate fertilization of the ovules, leading to seed and fruit development. Understanding this process highlights the importance of pollinators, such as bees, which assist in transferring pollen from one flower's anther to another flower's stigma, thereby promoting genetic diversity and reproduction in plants. Each part of the flower has a specific role, and the correct interaction between the anther and stigma is vital for successful pollination.