Week 4 Lab: Morphology Leaves, Stems, Roots Nodes, Internodes

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Presentation transcript:

Week 4 Lab: Morphology Leaves, Stems, Roots Nodes, Internodes Shoot Apical Meristem Apical initials Lead primordia Root Apical Meristem Root Cap Dichotomous branching Lateral Buds Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth

Week 4 Lab: Morphology Leaves, Stems, Roots Nodes, Internodes Shoot Apical Meristem Apical initials Lead primordia Root Apical Meristem Root Cap Dichotomous branching Lateral Buds

Week 4 Lab: Morphology Leaves, Stems, Roots Nodes, Internodes Shoot Apical Meristem Apical initials Lead primordia Root Apical Meristem Root Cap Dichotomous branching Lateral Buds

Week 4 Lab: Morphology Leaves, Stems, Roots Nodes, Internodes Shoot Apical Meristem Apical initials Lead primordia Root Apical Meristem Root Cap Dichotomous branching Lateral Buds

Week 4 Lab: Morphology Leaves, Stems, Roots Nodes, Internodes Shoot Apical Meristem Apical initials Lead primordia Root Apical Meristem Root Cap Dichotomous branching Lateral Buds

Week 4 Lab: Morphology Leaves, Stems, Roots Nodes, Internodes Shoot Apical Meristem Apical initials Lead primordia Root Apical Meristem Root Cap Dichotomous branching Lateral Buds

Week 4 Lab: Morphology Leaves, Stems, Roots Nodes, Internodes Shoot Apical Meristem Apical initials Lead primordia Root Apical Meristem Root Cap Dichotomous branching Lateral Buds

Week 4 Lab: Morphology Leaves, Stems, Roots Nodes, Internodes Shoot Apical Meristem Apical initials Lead primordia Root Apical Meristem Root Cap Dichotomous branching Lateral Buds

Week 4 Lab: Morphology Leaves, Stems, Roots Nodes, Internodes Shoot Apical Meristem Apical initials Lead primordia Root Apical Meristem Root Cap Dichotomous branching Lateral Buds

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth

Week 4 Lab: Can you find these three tissue types in all of the organs you look at? Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth Xylem = conducts water up a stem, THICK cell walls Phloem = conducts photosynthetic products, thin cell walls

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth Xylem = conducts water up a stem, THICK cell walls Tracheids – conduction AND mechanical support Vessel Elements – conduction only. Often with fibers (support).

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth Phloem = conducts photosynthetic products, thin cell walls Sieve Tube Members = conduct photosynthates. NO NUCLEUS! Companion Cells = “metabolic backpacks” for STMs

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth Epidermis Parenchyma Cortex Pith Vascular Bundle Xylem Phloem

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth Epidermis (cuticle, stomata) Parenchyma Mesophyll (spongy, pallisade) Vascular Bundle Xylem Phloem

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth Epidermis (root hairs) Parenchyma (starch storage) Cortex Endodermis (Casparian Strip) Vascular Bundle Xylem Phloem

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth Vascular Cambium Parenchyma Rays Vascular Rings Xylem (inner) Phloem (outer)

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth Vascular Cambium Parenchyma Rays Vascular Rings Xylem (inner) Phloem (outer)

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth Vascular Cambium Parenchyma Rays Vascular Rings Xylem (inner) Phloem (outer)

Week 4 Lab: Anatomy Tissue types Dermal Ground Vascular Stems Leaves Roots Secondary Growth Vascular Cambium Parenchyma Rays Vascular Rings Xylem (inner) Phloem (outer)