'Sieve tube' diaporamas de présentation

Cell Walls

Cell Walls. Cell walls are: Structural Provide defense against invading pathogens Provide signaling pathways for cells. Cell Wall Chemistry. Cell walls contain cellulose , pectin and lignin Cellulose is the major component Most abundant polymer in the world

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Introduction to Plants

Introduction to Plants. Kingdom: Plantae Plants : Cell wall Autotroph (photosynthesis) Multi-cellular 12 Divisions (Phyla) Anthophyta = Angiosperms (flowering plants) Largest # of species (~250,000 - 90% plants) Seed plants: product seed w/in a fruit Key adaptations: flowers & fruits

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Plant Cells & Tissues

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Translocation in the Phloem Chapter 12

Translocation in the Phloem Chapter 12. Land colonization. Prompted greater shoot growth to reach and compete for sunlight Prompted development of a deeper root system SEPARATES PHOTOSYNTHESIZING REGIONS FROM AREAS WHERE SUGARS ARE USED

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Lesson 3: Stems & Roots

Unit 5 Plants. Lesson 3: Stems & Roots. Functions of Stems. Economic value: wood products/lumber Connect the vascular tissue in the leaves to the vascular tissue in the roots, allowing water and dissolved substances to be transported throughout the body. Function of Stems.

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Transport in Vascular Plants II HKDSE Biology

Transport in Vascular Plants II HKDSE Biology. Organic nutrients are translocated through the phloem. Concept : Organic nutrients are translocated through the phloem Translocation : Is the transport of organic nutrients in the plant. Movement from Sugar Sources to Sugar Sinks.

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Transport in Vascular Plants II HKDSE Biology

Transport in Vascular Plants II HKDSE Biology. Organic nutrients are translocated through the phloem. Concept : Organic nutrients are translocated through the phloem Translocation : Is the transport of organic nutrients in the plant. Movement from Sugar Sources to Sugar Sinks.

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Plant Form and Function

Plant Form and Function. Chapter 35 Structure, Growth, and Development. The plant body has a hierarchy of organs, tissues, and cells. There are three basic plant organs: Roots Stems Leaves. Fibrous Roots Tap Roots

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Measuring Dynamical Responses of Plants to Environment Change Using Short-lived Radioisotope

Measuring Dynamical Responses of Plants to Environment Change Using Short-lived Radioisotope. Calvin Howell Duke University Physics Triangle Universities Nuclear Laboratory. Measuring Dynamic Biological Responses in Plants using Radioisotopes. Collaboration. C.R. Howell (Physics)

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Light

O 2. CO 2. Light. Sugar. H 2 O. O 2. H 2 O and minerals. CO 2. 32. 24. 42. 40. 29. 16. 19. 11. 21. 27. 3. 8. 34. 6. 14. 13. Shoot apical meristem. 26. 1. 22. 5. 9. 18. Buds. 4. 10. 2. 17. 31. 12. 7. 23. 15. 25. 20. 28. 1 mm. Cell wall.

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Eudicots

Monocots. Eudicots. Embryos. One cotyledon. Two cotyledons. Leaf venation. Veins usually netlike. Veins usually parallel. Stems. Vascular tissue scattered. Vascular tissue usually arranged in ring. Roots. Root system usually fibrous (no main root). Taproot (main root)

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ANATOMY OF FLOWERING PLANTS

ANATOMY OF FLOWERING PLANTS. PREPARED BY G.K.VINAYAGAM PGT BIO K V II BGM. www.cbse123.co.cc. PLANT TISSUES. TYPES OF MERISTEM. PARENCHYMA. cells are isodiametric. may be spherical , oval , round , polygonal or elongated.

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Plant Structure and Growth Chapter 35

Plant Structure and Growth Chapter 35. The Angiosperm Body. Two Classes based on Embryo s: 1. Monocots : single Cotyledon (seed leaf) 2. Dicots : two cotyledons. Three Basic Organs Roots Stems/Shoots Leaves. Monocots vs. Dicots. Root System.

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Plant Tissues and Morphology

Plant Tissues and Morphology. A mature vascular plant (any plant other than mosses and liverworts), contains several types of differentiated cells. These are grouped together in tissues. Some tissues contain only one type of cell. Some consist of several. . Meristematic.

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Plant Vascular Tissues

Plant Vascular Tissues. Ms. Bush Plants and Photosynthesis Unit. There are two main types of Vascular Tissue. Xylem- ___________________________ Tracheids Vessel Elements Phloem-___________________________ Sieve tube elements Companion Cells. Xylem up, Phloem down!.

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Chapter 30.5

Chapter 30.5. How Do Organic Compounds Move Through Plants?. AP Biology Spring 2011. Conducting Tubes in Phloem. Phloem: living vascular tissue with organized arrays of conducting tubes, fibers, and parenchyma cells. Conducting Tubes in Phloem.

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Vocabulary Chapters 23 & 24 Plant structure and function Quiz May 8 2013

Vocabulary Chapters 23 & 24 Plant structure and function Quiz May 8 2013. Parenchyma Collenchyma Sclerenchyma Epidermis Stomata Guard cell Trichome Xylem Phloem Tracheid Vessel element Sieve tube member Petal Anther Pistil P hotoperiodism. Companion cell Meristem

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