Protists

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Protists

  1. 1. Structure of an amoeba:Pseudopod: part of the amoeba used for locomotion.Cytoplasm: central part of an amoeba.Cell membrane: membrane covering an amoeba.Contractile vacuole: cavity of the amoeba that is able to contract.Food vacuole: cavity of the amoeba responsible for digestion.Nucleus: central organelle for an amoeba.Digestive vacuole: cavity of the amoeba responsible for digestion.
  2. 2. Structure of a euglena: flagellate freshwater protozoan.Reservoir: part of a euglena used for storage.Nucleus: central organelle of a euglena.Contractile vacuole: cavity of the euglena that is able to contract.Pellicle: membrane that envelops a euglena.Chloroplast: organelle of the euglena responsible for photosynthesis.Nucleolus: spherical body that contains the nucleus of a euglena.Stigma: light-sensitive part of a euglena.Flagellum: long, mobile filament used by the euglena for locomotion.
  3. 3. Structure of a paramecium:Cilia: minuscule cilia that envelop the paramecium and are used for locomotion.Contractile vacuole: cavity of the paramecium that is able to contract.Food vacuole: cavity of the paramecium responsible for digestion.Micronucleus: one of the less important central organelles of a paramecium.Oral groove: canal of the paramecium used to ingest nutrients.Gullet: cavity of the pharynx.Cytoplasm: central part of a paramecium.Large nucleus: the most important central organelle of a paramecium.
  4. 4. Plant cell: the cell is a highly complex system that is the site ofintense energy exchange and which presents vast interphasesurfaces. Like all living organisms, it feeds itself, grows, multiplies andNucleus: small spherical body with the cell Chloroplast: granule of chlorophyll, which is needed forphotosynthesis.Mitochondria: granule that plays an important role in the respirationand energy-releasing reactions in living cells. Cytoplasm :liquid part of the cellVacuole: space with the cytoplasm of a cell containing varioussubstances.Cell wall: rigid wall around the cell

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