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Extracellular fluid that surrounds the cells and lies between the cells and the plasma |
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small dense granules of RNA and proteins that manufacture proteins under the direction of DNA
most numerous in cells that export proteins |
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Smooth Endoplasmic Reticulum |
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Definition
lack ribosomes
synthesis of fatty acids, steroids and lipids. |
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Rough Endoplasmic Reticulum |
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Definition
Dotted with Ribosomes
main site of production of proteins |
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Definition
receives proteins made in the rough endoplasmic reticulum
modifies them and packages them into vesicles |
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membrane bound vesicles
breakdown bacteria or old organelles, they do this by acumulating H+ ions in their cytoplasm |
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material that is synthesized and secreted by a cell |
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smaller than lysosomes
they degrade long chain fatty acids and and potentially toxic foreign chemicals |
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cell adhesion molecule (CAM) |
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Definition
Membrane proteins that link cells to each other and to the extracellular matrix |
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Definition
create cytoplasmic communication bridges between adjoining cells so that they may share chemical and electrical signals from one cell to the next. |
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Definition
Cell-to-cell junction in epithelia that does not allow much movement of material between the cells |
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Form of cell-cell or cell-matrix junctions |
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