Cell Structure and Function

Cell Structure and Function - The Cell as the Fundamental...

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The Cell as the Fundamental Unit of Life: The Structure and Function of Cellular Organelles
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The cell is the smallest unit of life. All organisms are composed one or more cells. New cells arise from previously existing cells.
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Basic Cell Structure Each cell has four common components: 1. Plasma membrane 2. Region containing DNA 3. Cytoplasm 4. Biochemical molecules & biochemical pathways
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Cells Cells Two fundamental types: Prokaryotic No Nucleus No organelles Small 100nm-5um Eukaryotic True Nucleus Membrane bound organelles 10-100um Some are larger
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Classification Five kingdom system: Monera Protista Fungi Plantae Animalia Six kingdom system: Eu- bacteria Protista Fungi Plantae Animalia Archae- bacteria Three domain system: Eu- bacteria Archae- bacteria E U K A R Y A Eight kingdom system: Eu- bacteria Archezoa Fungi Plantae Animalia Archae- bacteria Chromista Protista
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Three Lineages of Life: Domain Bacteria Prokaryotes: No true nucleus No membrane-bound organelles Cell Wall composed of peptidoglycan
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Cell Structure and Function - The Cell as the Fundamental...

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