Download - O reino monera
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O REINO MONERA
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O termo Monera fai
referencia a organismos
celulares que carecen de
núcleo definido, os que son
chamados procariontes e
son considerados as formas
de vida máis antigas.
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Hoxe en día este reino divídese en dous reinos:
Reino das Bacterias.
Reino das Arqueobacterias
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Características xerais:
Tamaño: Son os organismos
celulares máis pequenos.
Nivel celular: Organismos
unicelulares.
Células procariotas (carecen de
envoltura nuclear)
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Sen orgánulos.
Teñen un único cromosoma circular
libre no citoplasma
Nutrición: Heterótrofa ou autótrofa.
Parede bacteriana de mureina (as
arqueobacterias non)
Presentes en tódolos hábitats, incluso
nos ambientes máis extremos.
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Bacilos
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Cocos
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Espirilos
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Vibrios