Roots & Stems Notes
Cross Section of Roots• Epidermis   – Protects against water loss   – Outer covering• Cortex   – Storage of photosynthetic...
Cross Section of Roots• Endodermis   – Prevents water from getting into the middle of     roots   – Water can only enter t...
Epidermis EndodermisPericycle
Cross section of roots• Phloem   – Carries food from the leaves to the stems and roots   – Vascular Tissue• Xylem  – Carri...
Monocot Root
Dicot Root
Stems - Functions• Transportation System   – Contains xylem and phloem• Support System   – Holds up leaves and plant
Cross Section of Stem1. Protective Tissues   – Epidermis & Cork1. Vascular Tissues   – Vascular Bundles     • Includes xyl...
Cross Section of Stem3. Meristematic Tissues   – Apical meristem (1° - increase height of plant)   – Lateral meristem (2° ...
Cross Section of Stem4. Storage Tissues   – Cortex (only found in dicot stems)   – Pith (found in both dicot & monocot    ...
Epidermis                             Pith                            PhloemXylem        Vascular bundle
Herbaceous Monocot StemUsing the previous slide, label the following picture.
Herbaceous Dicot StemUsing the previous slide, label the following picture.
Herbacous Dicot Stem Cross Sections
Do you see the difference?   Herbaceous Stems
Roots & stems moodle
Roots & stems moodle
Roots & stems moodle
Roots & stems moodle
Roots & stems moodle
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Roots & stems moodle

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  • whoow! slides are awesome their are the same as my lectures but funny they are more summarized and more understandable
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  • Stems allow water and minerals to move from the roots to the leaves and food (glucose) to go from the leaves to the roots . Hold up the leaves which undergo photosynthesis (requiring water and producing glucose).
  • Roots & stems moodle

    1. 1. Roots & Stems Notes
    2. 2. Cross Section of Roots• Epidermis – Protects against water loss – Outer covering• Cortex – Storage of photosynthetic products – Active in the uptake of water and minerals• Pith – Centermost region of the root
    3. 3. Cross Section of Roots• Endodermis – Prevents water from getting into the middle of roots – Water can only enter through root hairs• Pericycle – Allow for lateral root growth – Outermost layer of the central vascular system
    4. 4. Epidermis EndodermisPericycle
    5. 5. Cross section of roots• Phloem – Carries food from the leaves to the stems and roots – Vascular Tissue• Xylem – Carries water and minerals from the root to the stems and leaves – Vascular Tissue
    6. 6. Monocot Root
    7. 7. Dicot Root
    8. 8. Stems - Functions• Transportation System – Contains xylem and phloem• Support System – Holds up leaves and plant
    9. 9. Cross Section of Stem1. Protective Tissues – Epidermis & Cork1. Vascular Tissues – Vascular Bundles • Includes xylem & phloem
    10. 10. Cross Section of Stem3. Meristematic Tissues – Apical meristem (1° - increase height of plant) – Lateral meristem (2° - increase width of plant) – Vascular cambium • Produces more xylem towards the inside and more phloem towards the outside – Cork cambium • Produces more cork and cortex
    11. 11. Cross Section of Stem4. Storage Tissues – Cortex (only found in dicot stems) – Pith (found in both dicot & monocot stems)
    12. 12. Epidermis Pith PhloemXylem Vascular bundle
    13. 13. Herbaceous Monocot StemUsing the previous slide, label the following picture.
    14. 14. Herbaceous Dicot StemUsing the previous slide, label the following picture.
    15. 15. Herbacous Dicot Stem Cross Sections
    16. 16. Do you see the difference? Herbaceous Stems

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