Unit 1 Chapter 6 Noteguide 1 Plant Anatomy Unit 1 Chapter 6 Noteguide 1

The Importance of Plants Without plants, life on earth ______________ exist Plants are the ______________ source of ______________ for humans and animals

The Importance of Plants cont. Plants also: Provide ______________ Supply us with ______________ Renew the air ______________ down the wind ______________ in place Are a ______________ for wildlife Furnish building materials and fuel

Parts of the Plant Most plants are made up of four basic parts: ______________ ______________(these later become fruit or seeds)

Roots Usually ______________ – not visible Functions: ______________ the plant and hold it ______________ * ______________ water and minerals from the soil & ______________ them to the stem* Store large quantities of ______________ * Propagate or ______________ in some plants * = essential to all plants

Roots on the Inside Very ______________ to a stem Older roots of shrubs & trees have: Phloem on the outside (old phloem is bark) Cambium layer Xylem (wood) on the inside

______________ Carries manufactured food down to the root for food storage Carries water and minerals up to the stem

Roots on the Outside ______________ from a stem On a stem, the initiates growth On a root, the ______________ Root cap continuously makes ______________ that protect the root as it pushes into the soil

Root External Structure Behind the root cap are ______________ Root hairs become ______________ that branch out as the root grows older Absorb ______________ and ______________ which are conducted up to the larger roots and the stem

Roots as Crops Cash crops Carrots Beets Radishes Sweet Potatoes

Root Propagation Plants with ______________ roots: Dahlia Peony Sweet Potato Are propagated by ______________ the root clump or by rooting spouts from the root

Types of Root Systems Fibrous Root System vs. Tap Root System

Which root system is easier to transplant? Fibrous roots or tap roots? ___________________ Why? ___________________ ___________________ ___________________ ___________________ ___________________

If a root loses to many __________________while being transplanted, the plant will ________________. Larger roots only __________________ water, nutrients, and food Root hairs _________________ from the ground

Important “Root”words _____________________ All of the root parts of a single plant collectively First root sent from a germinating seed Absorbs water and nutrients for growing seedling Anchors seedling in the ground Small branches that form off of the primary root

Important “Root”words _____________________ Group of cells at the end of a root that protect it from the coarse soil as it pushes through to grow Roots that begin growth from a stem or leaf Commonly found on corn plants Plants that will produce roots at the base of the stem when a cutting is taken

Important “Root”words _____________________ Enlarged food-storage root with adventitious shoots that develop These shoots produce adventitious roots to produce a new plant