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Lack nuclei and membrane-bound organelles; genetic material is not bound by a nuclear envelope
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Prokaryotic Cells
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Have a membrane-bound nucleus and organelles
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Eukaryotic Cells
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Single-celled
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Unicellular
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Clusters of Cells
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Aggregates
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Clusters composed of a consistent and predictable number of cells
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Colonies
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Have no physiological connections, but maintain a predictable multicellularstructure
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Simple Colonies
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Have physiological connections and specialization of groups of cells
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Complex Colonies
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Have large numbers of cells w/ specialized structure and no one cell can exist by itself
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Multicellular
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Unicellular organisms may be _______(photosynthetic) or (deriving food from other organism)
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Autotrophicheterotrophic
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Part of an amoeba?
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Cell membraneEctoplasmEndoplasmNucleusContractile vacuolesFood vacuoles:Pseudopodia
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Ectoplasm -
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The thin, transparent layer of cytoplasm directly beneath the cell membrane.
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Endoplasm -
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The granular cytoplasm containing the cell organelles.
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Contractile Vacuoles -
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Gradually enlarge as they fill w/ excess water; serve as an excretory fxn
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Food vacuoles -
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Contain undigested food particles
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Pseudopodia -
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Fingerlike projections of the cytoplasm; used forlocomotion and phagocytosis
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