Outline 1D

Outline 1D - CHAPTER 23 PLANTS The main distinguishing...

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PLANTS The main distinguishing characteristics of the Kingdom Plantae are -Eukaryotic -Multicellular - Photosynthetic autotrophs -Varied and complex life cycles - Cell walls made of cellulose -Food reserve stored as starch or oils In addition to these characteristics, the plant kingdom shows a range of traits that appeared as plants made the transition from their origins in water onto the land. Some of these new traits are: Anchoring mechanism Roots Conducting vessels Xylem and Phloem Increased support mechanism Lignin External protection Cuticle Mechanism for gas exchange Stomata Xylem and Phloem are parts of the plants vascular tissue system . They are vessels that transport water, minerals, nutrients (especially sugars) and hormones throughout the plant. Plants with this trait are vascular plants . Lignin is a material that is added to the cell walls of “woody” plants. It increases the stiffness of the cells and allows better support for the leaves. Cuticle is a layer of waxy material on the epidermal layer of plants that helps prevent water loss or desiccation
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This note was uploaded on 04/25/2008 for the course V 011 taught by Professor Staff during the Spring '06 term at NYU.

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Outline 1D - CHAPTER 23 PLANTS The main distinguishing...

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