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PLANT SYSTEMS

Plants are a vital part of our ecosystem, providing food, oxygen, habitat, medicine, resources, and aesthetic beauty. Explore the characteristics and components of plants in this informative text. |

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PLANT SYSTEMS

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  1. PLANT SYSTEMS Ms. Kueh

  2. Why Should We Care About Plants?

  3. Why Should We Care About Plants? Food source Provide oxygen Foundation of the food chain Water (plants help regulate the water cycle and purify water bodies)

  4. Why Should We Care About Plants? Habitat Medicine Resources (clothes, homes, etc.) Provide enjoyment and beauty

  5. Vegetables https://www.youtube.com/watch?v=bGYs4KS_djg

  6. Plants are cool! http://www.youtube.com/watch?v=mooMo5k2w50

  7. Plants can also be deadly! http://www.youtube.com/watch?v=RmzbQsIdaFw

  8. Brainstorm: How do we characterize plants? In other words, what are their distinguishing features?

  9. WHAT CHARACTERISTICS COME TO MIND WHEN YOU THINK OF PLANTS? • TWO distinct characteristics of most flowering plants, ferns, conifers are: • GREEN COLOUR(Due to CHLOROPHYLL for Photosynthesis) • Can not move from place to place (ROOTS anchor them in place) • These TWO characteristics have a great influence on the overall structure and functions of the plant.

  10. Brainstorm! What are the major components that make up a plant?

  11. Two Main Body Systems Roots and Shoots!

  12. HIERARCHY OF PLANT BODY • SHOOT SYSTEM • system in flowering plant that is specialized to • conduct food and water • photosynthesize • reproduce sexually • consists of leaf, flower, and the stem

  13. HIERARCHY OF PLANT BODY • ROOT SYSTEM • anchors the plant • absorbs water and minerals through tiny root hairs • conducts water and nutrients • stores food and nutrients

  14. HIERARCHY OF PLANT BODY • Roots, leafs, flower, and stems are considered the ORGANS of the plant or more simply PLANT PARTS made of SPECIALIZED CELLS. • PLANT TISSUES are considered as separate systems.

  15. Important Functions of Plants: • Plants need to exchange gases with their surroundings • Plants require an internal transportation system to move water and nutrients around within their bodies • Plants need to have a way to reproduce

  16. Plant Tissue Systems

  17. PLANT TISSUE SYSTEMS • THREE main tissue systems: • DERMAL TISSUE SYSTEM – Tissues covering the outer surface of the plant • VASCULAR TISSUE SYSTEM – All plant tissues responsible for conducting materials within a plant • GROUND TISSUE SYSTEM – All plant tissues other than those that make up the dermal and vascular tissue systems

  18. Plant Systems Plant Systems Shoot System Leaf Flower Stem Root System

  19. CLOSER LOOK AT THE SHOOT As previously mentioned, the Shoot is made up of 3 parts: 1. Leaf 2. Flower 3. Stem

  20. The Leaf Photosynthesis • The Leaf is the main photosynthetic structure of plant • – organelle called CHLOROPLAST (only in Plant Cells) actually performs photosynthesis • Photosynthesis is: • chlorophyll • light energy + carbon dioxide + water glucose + oxygen

  21. The Leaf Photosynthesis • CHLOROPLASTS contain flat, disc-like structures called thylakoids • THYLAKOIDS are arranged in stacks called GRANA • GRANA act as solar collectors, using Chlorophyll in the membranes of thylakoids

  22. Leaves can be adapted for support, protection, reproduction and attraction • Leaves can be adapted for support, protection, reproduction and attraction

  23. CLOSER LOOK AT THE LEAF

  24. Flower – specialized structures developed for sexual reproduction – MALE reproductive structure - produce pollen grains – FEMALE reproductive structure - produce eggs - contains structures, or sometimes both

  25. Pollination – POLLINATION is the act of the eggs being fertilized by pollen • after POLLINATION, female flower parts form seeds that in most flowering plants are contained in specialized structures called FRUIT – POLLINATION occurs due to the help of wind or animals like birds, bats, insects

  26. Pollination

  27. The Beauty of Pollination http://www.youtube.com/watch?v=xHkq1edcbk4 http://www.youtube.com/watch?v=-h8I3cqpgnA

  28. Stems

  29. Stem (Trunk) – supports branches, leaves, and flowers – provides way a way to transport materials – VASCULAR TISSUEis contained for carrying substances to and from roots, leaves, flowers, and fruits – some are specialized for food storage, protection, photosynthesis, and reproduction

  30. HOMEWORK Read Section 4.1 Pg. 128, #1 – 7

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