What is the female part of the flower that holds pollen grains called?

The correct answer is the stigma, which is the female part of the flower responsible for receiving pollen grains during the process of pollination. The stigma is often sticky, allowing it to catch and hold the pollen brought by wind, insects, or other agents. This is a critical step in the fertilization process, as it facilitates the transfer of pollen to the ovary, where fertilization can occur.

While the ovary is part of the female reproductive structure and contains ovules that develop into seeds, it does not hold the pollen grains directly. The style serves as a connecting tube between the stigma and the ovary but does not play a role in retaining pollen. Petals are typically colorful and serve to attract pollinators, enhancing the chances of pollination but are not involved in the direct handling of pollen. Understanding the roles of these different flower parts helps clarify the function of the stigma as a receptor for pollen.