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Transcript
Chapter 2 – Plant Structures and Functions Lesson 2 – Plant Transport Systems © Brent Coley 2009 | www.mrcoley.com How do different materials move in plants? • Roots – xylem: moves water and minerals up from roots to the stem – phloem: carries sugar from leaves down the stem and into roots How do different materials move in plants? • Roots – taproots: thick; grow deep (carrots, beets) – fibrous roots: thin (grass) – prop roots: finger-like (corn) What is the transport system made of? • Xylem and phloem continue up from the roots all the way through the stem. • cambium: layer in stem where new xylem and phloem are made. Tree Rings Bark (protective outer layer) phloem xylem Tree Rings • A ring of xylem grows every year, so you can count the rings to determine the age of the tree. All images courtesy of Microsoft Office Online.
