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Learning Objectives

Learning Objectives. By the end of the lesson, you should be able to: Identify and label the cellular and tissue structure of a dicotyledonous leaf, as seen in cross-section under the microscope. (from Chapter 5: Plant Nutrition)

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Learning Objectives

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  1. Learning Objectives • By the end of the lesson, you should be able to: • Identify and label the cellular and tissue structure of a dicotyledonous leaf, as seen in cross-section under the microscope. (from Chapter 5: Plant Nutrition) • Identify the positions and explain the functions of xylem vessels, phloem (sieve tube elements and companion cells), in transverse and longitudinal sections of unthickened, herbaceous dicotyledonous root and stem, under the light microscope. • *Recognize xylem vessels, sieve tubes and companion cells in transverse and longitudinal sections of monocotyledonous root and stem. • Draw plan diagrams of tissues (including a transverse section of a dicotyledonous leaf).

  2. Dicot Leaf Upper Epidermis Palisade Mesophyll Xylem Vascular Bundle Spongy Mesophyll Phloem Lower Epidermis

  3. Monocot Leaf Upper Epidermis Xylem Vascular Bundle Mesophyll layer Phloem Lower Epidermis Bundle Sheath

  4. Dicot Stem Pith Epidermis Cortex Vascular Bundle

  5. Monocot Stem Epidermis Ground Tissue Vascular Bundle

  6. Dicot Root Endodermis Pericycle Root Hair Cortex Epidermis Xylem Vascular Bundle Phloem

  7. Monocot Root Root Hair Pith Xylem Vascular Bundle Endodermis Phloem Pericycle Cortex Epidermis

  8. Dicot Vascular Bundle Bundle cap fibres Phloem Vascular cambium Metaxylem Protoxylem

  9. Monocot Vascular Bundle Bundle Sheath Phloem Axial parenchyma Metaxylem Protoxylem

  10. Timing for Today’s Activities A) Leaf Peel and Stomata Distribution Experiment ACCOMPLISH BY 12:40PM B) Plant Histology: Dicot Leaf (10 minutes) Monocot/Dicot Stem (10 minutes) Monocot Dicot Root (5 minutes) ACCOMPLISH BY 1:05PM C) Potometer Observation ACCOMPLISH BY 1:15PM

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