tissues organs and systems in plants r1

Click here to load reader

Post on 11-May-2015

7.726 views

Category:

Technology

3 download

Embed Size (px)

TRANSCRIPT

  • 1.Photosynthesisand RespirationIntroduction to plant organ systems

2. Review layers of cell organizationCELLS basic unit become specialized 3. TISSUESsimilar cells working togetherCELLSbasic unitbecome specializedto perform a specific function 4. ORGANSdifferent types of tissues working together TISSUESsimilar cells working togetherCELLS basic unit become specializedto perform a specific functionto perform a specific function 5. ORGAN SYSTEMSdifferent organs working together ORGANSdifferent types of tissues working together TISSUESsimilar cells working togetherCELLS basic unit become specializedto perform a specific functionto perform a specific functionto perform a specific function 6. ORGANISMdifferent organ systems working together ORGAN SYSTEMSdifferent organs working together ORGANSdifferent types of tissues working together TISSUESsimilar cells working togetherCELLS basic unit become specializedto perform a specific functionto perform a specific functionto perform a specific function 7. Plant OrganizationSTOP HERE and Brainstorm!Things to considerWhat do you know about thestructure of plants?What do plants require to survive?How do different parts of the plantfunction to help the plant live?What sorts of cells and tissues do youthink plants must have? 8. Plant OrganizationPlants have two organ systems The shoot system is above ground and includes the organs such as leaves, buds, stems, flowers and fruits. The root system includes those parts of the plant below ground 9. Plants have four types of organs . . .Roots- anchor plant- absorb minerals and water- stores nutrientsStems- support and elevate leaves- transport between roots andshootsLeaves- site of photosynthesisReproductive Organs- variable- include flowers, seeds, fruit 10. . . and three types of tissue systems Dermal Tissue - often called the epidermis - a single layer of cells that forms a protective skin - secretes a waxy cuticle to prevent water loss Vascular Tissue - transports water, minerals and sugars between roots and shoots - arranged in strands calledvascular bundles 11. There are two types of vascular tissue:1) Xylem transports water and dissolved minerals UPWARD2) Phloem transports sugars (food) made in leaves DOWNWARD to roots and to other parts of shoot system 12. . . and three types of tissue systemsGround Tissue- cells that fill the spacebetween the epidermis andvascular bundles- ground tissue cells have twomain functions(1) structural support theplant(2) metabolic life functionslike photosynthesis 13. Leaf cells and tissues 14. Vascular Tissue System Monocots Dicots- Long tissue strands -Long tissue strands calledcalled vascular bundles vascular bundles arrangedscattered through stems in rings within stem, toform a cylinder shape