QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
What is the function of the stigma on a flower?
A. It provides a supply of stored nutrients for the seed.
B. It has a sticky surface that helps trap pollen grains.
C. It helps spread seeds away from the parent plant.
D. It attracts birds, bees, and bats to help with pollination.
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Answer
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Step 1I'll solve this problem step by step, focusing on the function of the stigma in a flower.
Step 2: Understand the Stigma's Location
The stigma is part of the female reproductive structure of a flower, located at the top of the pistil. It is the receptive surface where pollen grains first land during the pollination process.
Final Answer
The stigma has a sticky surface that helps trap pollen grains, which is crucial for successful pollination and reproduction in flowering plants. Explanation: The sticky surface of the stigma is specifically designed to capture and hold pollen grains, facilitating the first step in the fertilization process by allowing pollen to adhere and eventually grow a pollen tube to reach the ovule.
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