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Waterways in vegetable kingdom

Waterways in vegetable kingdom. I.E.S. de Foz Workshop 1. SEAWEEDS . Aqua Project. The estuary of Foz is a result of the mouths of the rivers Masma and Centiño, and divides the boroughs of Foz and Barreiros. It was an important whale port and shipyard.

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Waterways in vegetable kingdom

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  1. Waterways in vegetable kingdom I.E.S. de Foz Workshop 1

  2. SEAWEEDS Aqua Project

  3. The estuary of Foz is a result of the mouths of the rivers Masma and Centiño, and divides the boroughs of Foz and Barreiros. It was an important whale port and shipyard.

  4. An estuary is the tidal mouth of a river, causing a coastal valley which is flooded by the sea, and consequently is subject to the effect of high and low tides.

  5. Seaweeds are tallophyte plants, that`s to say they don`t posses well differiantiated body.They have a relatively undifferentiated mass of cells called “thallus”...

  6. ...instead of having an organized plant body (stem, root and leaf)

  7. Even though thalli don´t have organized ans distint parts as do the vascular plants they have analogous structures that resembre their vascular “equivalents”In a kelp we can see:

  8. • Holdfast = Rhizoide (anchoir)

  9. • Stipe= Cauloid (suppors the blades)

  10. • Blades = Phylloids (photosynthesis)

  11. Some of the more common seaweeds in our shores ….

  12. Ulva lactuca

  13. Codium tomentosus

  14. Ecfocarpus silicolosus

  15. Laminaria digitata

  16. Laminaria saccharinna

  17. Chorda filum

  18. Himanthalia elonga

  19. Fucus vesiculosus

  20. Plant cells

  21. The movement of molecules, specifically water and any solutes, is vital to plants. Vascular plants need special tissues as xilema and floema to transport water and minerals. In the picture we can see the xilema colored in yellow.

  22. Here we can see the phloem colored in pink.

  23. Seaweeds have all their cells in contact with water, so that they don’t need any transport system. They take all they need, straight from the sea. These molecules can enter by diffusion: they go from an area of higher concentration to an area of lower concentration.

  24. Water pass trough “osmosis”, that means that it flows from a region of lower solute concentration to another of higher solute concentration, through a semipermeable membrane.

  25. We can say that water works as a “water skeleton” in cells.It helps to keep their size and shape • This is specially important in seaweeds given that they don’t have any tissues with that funtcion(vascular plants have colenquime and esclerenquime)

  26. USES: • They have a variety of purposes: • . _Production of dental molds (alginates). _Source of iodine  necessary for thyroid function. _Food (specially in countries live Japan, China…). _Microbiology  agar as culture medium. _Extraction of alginate or agar (=hydrocolloids with comercial significance as food additives). _In industrial products: adhesive, textile printing. _May be used as fertilized.

  27. 2. HABITAT: • They most commonly inhabit the littoral zone and within that zone more frequently on rocky shores tan on sand. The limiting factor is sunlight availability. • The deepest living seaweeds are some species of red algae The highest ones are green algae

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