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In these cases, the parts of the perianth are called tepals. With some plants, a clear distinction between petals and sepals cannot be made. Together, the petals and sepals are called the What are the parts of a flower and their functions? l 4. When all the sepals are fused together, they form a calyx. The sepals support the petals and protect the flower before it opens. Beneath the petals are more leaf-like structures that are often green, called sepals. When all the petals are fused together, they form aĬorolla. These are the petals, usually colorful leaf-like structures that often attract animals and insects. Flowers often have parts that are neither male norįemale. What are the parts of a flower and their functions? l C. Flowers that have only female parts are called pistillate. Once the pollen reaches the stigma, it forms a pollen tube down through the style to the ovary where sperm is deposited. Below the stigma is a rod-shaped middle part called the style and a swollen base containing eggs called the ovary. The pistil is made up of a sticky tissue at its endĬalled the stigma that is receptive to pollen. The female part of a flower is called the pistil. What are the parts of a flower and their functions? l B. Flowers that have only male parts are called staminate. The anther contains pollen, the grain released by flowers, which contains the sperm. The stamen is made of the stalk-like filament The male part of a flower is called the stamen. What are the parts of a flower and their functions? l A. Most flowers contain both male and female parts. They are made of many intricate and important parts. The purpose of flowers is for plants to be able to reproduce sexually. Flowers are the most obvious part of most What are the parts of a flower and their functions? l I. Terms l _ sepals l _ spadix l _ spike l _ stamen l _ staminate l _ stigma l _ style l _ tepals l _ umbel Terms l _ pedicel l _ peduncle l _ perfect flower l _ perianth l _ petals l _ pistil l _ pistillate l _ pollen l _ raceme l _ receptacle Terms l _ filament l _ head l _ imperfect flower l _ incomplete flower l _ indeterminate l _ inflorescence l _ monoecious l _ ovary l _ panicle Terms l _ anther l _ bract l _ calyx l _ catkin l _ complete flower l _ corolla l _ corymb l _ cyme l _ determinate l _ dioecious l 3 Define inflorescence and describe the types l 2 Compare and contrast the types of flowers. Objectives l 1 Identify the parts of flowers and explain What do students know? Are there girl and boy plants? (Yes, sometimes.) Do plants have sex ? (Yes.) Do plants have sperm and eggs? (Yes.) Do plants have genitalia? (Yes, although we call them flowers. Now, switch to plant sexual reproduction.

Although the initial responses may be slow, given time, most students will be able to tell you about animal reproduction. Students know about sexual reproduction in animals.

Interest Approach l Begin a discussion on sexual reproduction.