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Learn the Parts of a Flowering Plant
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Hi, I'm Jim Shields for About.com, and today I'm going to teach you about the parts of a flowering plant. A flowering plant has two major systems: a root system and a shoot system. The root system delivers water and dissolved minerals to the leaves for use in photosythesis. Roots are often underground but they can also be in water or even in the open air.Two types of root systems are taproots, in which there is a single larger root with smaller branch roots extending from it, and a  fibrous root system, in which many roots similar in size form a mass.   The shoot system is where photosynthesis and reproduction take place, and it includes the leaves and flowers, which are supported by the stem. The flower itself has four parts: the petals, which attract pollinators, the sepal which helps support and protect the flower, the stamen which is male reproductive organs, and the carpel which is the female reproductive organs.The stamen is the part of the flower that produces pollen and it consists of two parts: the filament, which is a stem that supports the anther, which is a sac that contains pollen. The carpel consists of the stigma, style, and ovary. In some flowers, when more than one carpel is fused together, it is referred to as a pistil. In a flower with one carpel, like this one, the term is interchangeable with pistil. In the carpel, the stigma is the tip which is sticky in order to collect pollen. The style is the neck of the carpel that leads to the ovary. The ovary is the structure at the base of the carpel that contains the ovule or the egg. So remember that a flowering plant has has both a root system for water and nutrition, and a shoot system for reproduction and photosynthesis. A flower like the one in this diagram, that has both male and female reproductive organs, is referred to as a perfect flower. Thanks for watching. To learn more about biology, visit us on the web at About.com.
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