The stigma is part of which reproductive structure?

The stigma is part of which reproductive structure?

• A. Stamen
• B. Carpel (Pistil)
• C. Pedicel
• D. Receptacle

Answer: (B)

Understanding where the stigma sits helps connect structure to function in flowers. The stigma is part of the female reproductive structure—the pistil, which is built from one or more carpels. The pistil includes the stigma at the top, the style below it, and the ovary at the base. The stigma’s sticky surface captures pollen and begins fertilization by guiding pollen tubes down the style to the ovules in the ovary. The other structures mentioned are different: the stamen is the male reproductive organ, the pedicel is the flower’s stalk, and the receptacle is the base that supports the floral parts. So the stigma belongs to the carpel (pistil).

Understanding where the stigma sits helps connect structure to function in flowers. The stigma is part of the female reproductive structure—the pistil, which is built from one or more carpels. The pistil includes the stigma at the top, the style below it, and the ovary at the base. The stigma’s sticky surface captures pollen and begins fertilization by guiding pollen tubes down the style to the ovules in the ovary. The other structures mentioned are different: the stamen is the male reproductive organ, the pedicel is the flower’s stalk, and the receptacle is the base that supports the floral parts. So the stigma belongs to the carpel (pistil).