Chapter 24

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by hailee315
Last updated 5 years ago

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Discipline:
Science
Subject:
Botany

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Chapter 24

-extensive system to anchor plants that absorbs minerals and water -Also produce hormones to stimulate growth of stems -Perennial plants typically live year to year -Herbaceous perennials usually life in temperate areas, dying during the fall and winter

Chapter 24

ROOTS

STEMS

TISSUES OF FLOWERING PLANTS

*Scroll*EPIDERMAL TISSUE -forms the outer protective cover of plants -Epidermis: body of plants is made of this tightly packed epidermal cell wall -Epidermis cells are covered with cuticles to lower water loss -Root Hairs come from these cells which increase surface area -Trichomes are hairs to conserve moisture and protect from sun GROUND TISSUE Forms bulk of flowering plant VASCULAR TISSUEXylem: transports water Phloem: transports food

-A stem is the central axis of a plant that supports leaves -It also has vascular tissue to transport water and minerals to roots through stem to leaves

Terminal bud: has shoot tip protected with bud scales Each spring scales fall off leaving a scar Bark: contains periderm and phloem Wood: secondary xylem that builds up STEM DIVERSITY Stolons: horizontal stems make plants where nodes touch ground Rhizomes: underground horizontal stems

ORGANIZATION AND DIVERSITY OF STEMS

ORGANIZATION AND DIVERSITY OF LEAVES Leaf is composed of mesophyll: tissue Leaf can be simple: single blade or compound: many leaflets Leaves adapt to environment

Watch to learn about leaf structure!

Press play to learn about monocots and eudicots

Wow this project rocks


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