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Plants Unit Chapter Five

Plants Unit Chapter Five. Mrs . Swanson. CHAPTER FIVE: Plants with Seeds. I. Structure of Seed Plants A. Def- Vascular plants that produce seeds 1. xylem- carries water and minerals 2. phloem- carry food. B. Roots. 1. Anchor plants, store food, transport plants

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Plants Unit Chapter Five

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  1. Plants UnitChapter Five Mrs. Swanson

  2. CHAPTER FIVE: Plants with Seeds I. Structure of Seed Plants A. Def- Vascular plants that produce seeds 1. xylem- carries water and minerals 2. phloem- carry food

  3. B. Roots 1. Anchor plants, store food, transport plants 2. Fibrous- several main roots 3. Taproot- thick main root with branches. 4. Epidermis and Root Hairs 5. Root picture (fig 6-2)

  4. C. Stems 1. Water, minerals, food are transported between roots and leaves. 2. Herbaceous-green and soft (ex. Sunflowers, grass, tomatoes) 3. Woody- stems and woods stem is thicker. (Vascular tissue xylem and phloem) roses maples, firs.

  5. Stems cont’d 4. Bark- outmost stem 5. Vascular cambium- growth region of the stem where xylem and phloem are produced. 5. Pith- center of the stem, this region contains large, cells that store H2O and food 6. Growth rings result of different growth rates based on minerals and water suppy.

  6. D. Leaves 1. Simple- blade that is one piece 2. Compound- blade that is divided into a number of separate leaf like parts 3. No matter the shape, the leaf is where the sun’s energy is captured. 4. Photosynthesis process in which sun’s light energy is captured by chlorophyll and through a complete series of chemical reactions produces food for the tree or plant

  7. 5. Structure of Leaf a. Epidermis covered with waxy coating called a cuticle to prevent water loss (jewel weed) b. Mesophyllor middle leaf- Photosynthesis occurs c. Stomata-allows carbon dioxide to enter a leaf and oxygen to leave the leaf. (Transpiration)

  8. Upper Leaf Lower Leaf Chloroplast

  9. Comparing Photosynthesis and Respiration • A. Formula 6 CO2 + 6 H2OC6H12O6 +6O2 light and chlorophyll 1. Oxygen is produced by photosynthesis and is necessary for all life. • Sugar is produced and stored by plants to be used to carry out life processes 3. Organisms use fuel (food) to produce heat energy and release CO2 and H2O to air.Respiration

  10. Photosynthesis and RespirationEqual and Opposite

  11. Photosynthesis and RespirationEqual and Opposite

  12. II. Gymnosperms- -A plant whose seeds are not contained in an ovary A. 360 million years ago B. Throughout the age of dinosaurs, were most dominant plant. C. Four Phyla- 1. Cycads- tropical plants that look like palm trees. 2. Gingkoes- seeds have rotten odor, do not seem to exist in the wild can tolerate pollution 3. Conifers- Most abundant gymnosperm include tallest tree (Redwood, Pines) cone bearing 4. Gnetophytes- diverse group of plants that are very strong

  13. Gymnosperm Reproduction Seed Dispersal Seed Development Fertilization Pollination

  14. III. Angiosperm- a plant whose seeds are contained in an ovary A. The seed plants do not require H2O to reproduce. B. Young seed plants have provide food and protection from capsule C. A seed is a structure that protects the fertilized egg of a plant. D. A seed consists of a seed coat, a young plant, and stored food. E. An angiosperm is a flowering plant whose seeds develop within ovaries.

  15. F. Events 1. Release pollen 2. Pollination- a. grain lands on stigma b. breaks open c. through style into ovule d. sperm emerges from tube 3. Fertilization 4. Seed Formation 5. Seed Dispersal 6. Germination 7. Flower- a structure that contains the reproductive organs of angiosperms

  16. Life Cycle of Angiosperm

  17. Structure of the Flower • http://www.phschool.com/webcodes10/index.cfm?wcprefix=cep&wcsuffix=1053&fuseaction=home.gotoWebCode&x=0&y=0

  18. Comparing Monocots and Dicots

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