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Understanding the Anatomy of Trees for Student Learning

Explore the three main parts of a tree - Roots, Trunk, and Crown - and learn about their functions. Discover the significance of roots in anchoring, trunks in nutrient transportation, and crowns in photosynthesis and wildlife habitat.

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Understanding the Anatomy of Trees for Student Learning

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  1. Forestry-Parts of the TREE Designed by Chris Kennedy

  2. Student learning Objective • 1. Identify the major parts of a tree. • 2. Explain the functions of the various parts of a tree.

  3. Three Major Parts of a tree: • Roots. • Trunk • Crown

  4. Roots • The roots are the part of the tree typically found below the soil surface. The root system serves to anchor and support the tree. Roots take water and nutrients from the soil for plant growth. Roots also act as a storehouse for manufactured food for the plant. There are two basic types of tree roots. • Tap Root • Fibrous Root

  5. Parts of the Trunk • Heartwood-Dead center portion of the tree. • Xylem- carries nutrients from roots to crown. • Cambium-live layer of cell responsible for growth. • Phloem-carries food from crown down through tree.

  6. Trunk • The trunk of the tree serves to conduct nutrients and water from the roots to the manufacturing portion of the tree, represented by the crown. The trunk also produces the bulk of the useful wood in a tree. The trunk is comprised of a series of rings. Under normal conditions, one ring is produced each year. Each section of the ring has a specific purpose in the life of the tree.

  7. Crown • The crown of the top part of the tree that includes branches, twigs, buds, and leaves. A major role of the crown is to hold leaves to collect sunlight so photosynthesis can occur. It is also in this section of the tree that seeds, fruits, nuts, and berries are produced. The crown can also served as a nesting site for wildlife such as squirrels and birds.

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