Download - Protoctista 2013
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Reino
Protoctista
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• Características Gerais:
– Eucariontes;
– Uni e pluricelulares;
– Autótrofos e heterótrofos.
• Dividido em três grupos:
– Protozoários;
– Algas unicelulares;
– Algas pluricelulares.
• Plâncton: fitoplâncton e zooplâncton.
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Protozoários• Amebóides: locomovem-se por pseudópodes.
Cissiparidade
Nutrição da ameba
Ameba
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Ciclo da amebíase ou disenteria amebiana
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• Flagelados: locomovem-se por meio de flagelos.
Triconympha
Bipartição longitudinal
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Ciclo da doença de Chagas
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• Ciliados: deslocam-se por meio de cílios.
Esquema de paramécio com as principais
organelas
Paramecium sp.
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Conjugação em ciliados
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• Esporozoários: deslocam-se por deslizamento ou
flexões do corpo.
Toxoplasma gondiiCiclo da Toxoplasmose
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Ciclo da Malária
Plasmodium
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Algas unicelulares• Euglenófitas
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• Bacilariófitas
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• Dinoflagelados
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Algas pluricelulares
• Algas verdes ou clorofíceas
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• Algas pardas ou feofíceas
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• Algas vermelhas ou rodofíceas
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• Reprodução das algas pluricelulares:
– Assexuadas:
• Fragmentação;
• Esporulação
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– Sexuada
• Ciclo haplonte-diplonte (alternância de gerações)