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Understanding Plant Structures: Functions and Surface Area Calculations

This overview delves into the diverse structures of plants, including thick, tube-like, and flattened forms, each consisting of 64 cells. It presents surface area and volume calculations, showing how surface area impacts plant functions. For instance, a surface area of 340,000 µm² across 136 cell surfaces or 240,000 µm² from 96 cell surfaces demonstrates the significant variation in plant tissue. We also explore structures such as root hairs, vascular bundles, and the distinctions between dicots and monocots in terms of growth patterns and tissue organization.

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Understanding Plant Structures: Functions and Surface Area Calculations

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Presentation Transcript

  1. Plant Form and Function

  2. Thick structure(64 cells) Tube-like structure (64 cells) Flattened structure (64 cells) 50 m Surface area  340,000 m2 (136 cell surfaces  2500 m2/cell surface) Surface area  240,000 m2 (96 cell surfaces  2500 m2/cell surface) Surface area  420,000 m2 (168 cell surfaces  2500 m2/cell surface) Volume  8,000,000 m3 (64 cells  125,000 m3/cell) Volume  8,000,000 m3 (64 cells  125,000 m3/cell) Volume  8,000,000 m3 (64 cells  125,000 m3/cell) Surface area/volume  0.0425/m Surface area/volume  0.0300/m Surface area/volume  0.0525/m

  3. root hairs mucigel Root apical meristem rootcap Root tip

  4. Stem module

  5. dicot monocot

  6. Water buttercup Agrimony

  7. Shoot apical meristem

  8. epidermis cortex Vascular bundle Primary phloem Primary xylem Procambium Cross section of dicot primary stem pith

  9. Primary xylem Vascular cambium Secondary xylem Primary phloem Secondary phloem

  10. Second year Secondary xylem First year Secondary xylem

  11. Annual ring Early wood Late wood

  12. Cork cambium Secondary growth

  13. phelloderm Cork cambium

  14. cork Cork cambium phelloderm periderm

  15. epidermis cortex

  16. cork Cork cambium Primary xylem phelloderm Primary phloem Secondary phloem Vascular cambium Secondary xylem Mature secondary stem

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