The Plant Body | Plant Form and Physiology | Unit 6. Plant Structure and Function

Описание: Chapter: The Plant Body
Collection: Plant Form and Physiology
Unit 6. Plant Structure and Function
Book: Biology


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A vascular plant consists of two organ systems: the shoot system and the root system. The shoot system includes the aboveground vegetative portions (stems and leaves) and reproductive parts (flowers and fruits). The root system supports the plant and is usually underground. A plant is composed of two main types of tissue: meristematic tissue and permanent tissue. Meristematic tissue consists of actively dividing cells found in root and shoot tips. As growth occurs, meristematic tissue differentiates into permanent tissue, which is categorized as either simple or complex. Simple tissues are made up of similar cell types; examples include dermal tissue and ground tissue. Dermal tissue provides the outer covering of the plant. Ground tissue is responsible for photosynthesis; it also supports vascular tissue and may store water and sugars. Complex tissues are made up of different cell types. Vascular tissue, for example, is made up of xylem and phloem cells.


00:00 The Plant Body
00:33 Plant organ systems
01:32 Plant tissues
05:09 Section summary

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