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Understanding the External Structure of Plants: Roots, Shoots, and More

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This presentation explores the external structure of plants, focusing on the various parts visible above and below ground. Key topics include the root system types—such as tap roots, fibrous roots, and specialized roots like aerial and stilt roots—and their functions like water absorption, anchoring plants, and nutrient storage. The shoot system, including stems, leaves, and buds, is also examined. Discover how these structures contribute to plant survival and growth, featuring examples from common plants like bananas, corn, and large trees.

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Understanding the External Structure of Plants: Roots, Shoots, and More

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Presentation Transcript

  1. The EXTERNAL Structure of PLANTS

  2. External Structure of the Plant – Parts of the plant on the outside. • The Root • Types of Root Systems • Functions of the Root System • Specialized Root Systems

  3. AXILLARY BUD TERMINAL BUD FLOWER FRUIT NODE SHOOT SYSTEM NODE INTER- NODE NODE LEAF STEM LATERAL OR SIDE ROOT ROOT SYSTEM MAIN ROOT

  4. The Shoot System is found ground and the Root System is found ground. ABOVE BELOW or UNDER

  5. Types of Root System Looks like a tangled mass of roots • Examples of plants • With this root • system are • Banana • Coconut • Rice • Corn • Sugar Cane All Grasses

  6. Tap Roots Have a large main central root Have many branching roots Go deep in the soil • Examples of plants : • Large trees e.g. mango, avocado • Shrubs e.g. tomato, peppers

  7. Aerial Roots Plant attaches itself to tree branch or telephone wire Roots hang down in mid-air and absorb water from rainfall Examples : Wild Pine Some Orchids

  8. Specialized Roots STILT ROOTS e.g. Mangrove

  9. PROP ROOTS e.g. Corn

  10. ADVENTITIOUS Roots - Grow from unusual places on plants such as - Stems, leaves and even fruits

  11. Functions of Roots Roots : - anchor plants firmly in the ground - absorb water and minerals from the soil - of some plants, can store starch - of some plants can be used to grow a new plant

  12. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

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