1ESO Classification of Plants - Contenido educativo
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Hello, let's continue with the classification of the plants.
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We are on our notebooks, we need to write 1.2 classification and add this heading to
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the table of contents, remember.
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Let's see the different types of plants that we can have.
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Okay, we are going to make a classification depending on whether they have flowers or
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not.
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non-flowering plants and flowering plants. Which one are the non-flowering plants?
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In all the flowering plants, meaning that they do not have flowers, they have the
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bryophytes. Bryophytes are the mosses. I'll put some pictures here. Mosses are small
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plants, maybe you have used it to prepare in Christmas the portal de Belén, okay,
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just to cover the that part okay and they are very small and they do not have flowers
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we have also the pteridophytes which are the ferns in Spanish we call them
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helechos they are very common in areas that are humid let's go to the flowers
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okay in the flowering plants we have two types we have the gymnosperms that here
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we include trees like the pine, like the cypress, pinos depreses,
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arithonicas, all those are gymnosperms. And the angiosperms are those ones that
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have real fruits. And here we have the rest, poppies, cherry tree, apple tree,
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oaks, any other type of tree that are not in the gymnosperms, we find it in the angiosperms
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and also small plants are angiosperms
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We start with the next sections, from the classification we take the non-flowering plants
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Point two, non-flammable implants, table of contents, 2.1, bryophytes.
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Bryophytes are the mosses, musgos.
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What are the parts of these mosses, of these bryophytes?
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Okay, they have something similar to roots, but they are not roots, which are called the rhizoids.
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They have something similar to the stem, but it's not the stem, which is the caglidium.
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And they have something similar to the leaves, but they are not leaves, which are the phyllidia.
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Okay? So, Rhythoid, Scallidium, Phyllidia.
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And, but, that is not the most important part of the mosses.
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The most important part is that they are divided into two different organisms.
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The gametophyte and the sporophyte.
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The gametophyte, we find it most of the time with the mosses we see the gametophyte.
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The sporophyte is a structure growing on the gametophyte that helps with reproduction
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So sporophyte only for reproduction
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And this part of the sporophyte is called the sporangium and when it opens it releases spores
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So I repeat, gametophyte and sporophyte
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Sporophyte only with reproduction and when it opens it releases spores
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some important facts about the baryophytes that you need to know
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first of all they do not have conducting vessels
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conducting vessel transport the sap up and down the plant but baryophytes
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do not have conducting vessels
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they need water and shade because another plant
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can grow because the conducting vessels hit the water from the roots to the
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leaves but mosses do not have so they need water and shade and usually they are small
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and these mosses help to prevent erosion of soil that is very important in nature because these
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Mouses are some of the first organism to colonize an empty space
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- Idioma/s:
- Autor/es:
- Marta Garcia
- Subido por:
- Marta G.
- Licencia:
- Reconocimiento - No comercial - Sin obra derivada
- Visualizaciones:
- 116
- Fecha:
- 20 de mayo de 2020 - 20:34
- Visibilidad:
- Clave
- Centro:
- IES FORTUNY
- Duración:
- 04′ 50″
- Relación de aspecto:
- 1.78:1
- Resolución:
- 1920x1080 píxeles
- Tamaño:
- 123.10 MBytes
