Proteoglycans are one of the many types of molecules and proteins composing the extracellular matrix. Proteoglycans in the extracellular matrix of animal tissues allow cartilage to resist compression. OPTION C.
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The extracellular matrix has proteins of varying nature that provide tension and adession properties.
All of them are included in a medium that contains water, salts, and other macromolecules that confer turgidity and facilitate diffusion.
Proteoglycans are macromolecules is composed of a central protein, with several associated sulfated glycosaminoglycans molecules.
These molecules are synthetized in the cell but most of them are exported to the extracellular space or remain in the cell membrane.
Among their many different functions, we can mention hydratation, mechanical pressure ressistance, lubricant, involved in differenciation, motility, facilitate diffussion, and communication between cells, among others.
Proteoglycans provide turgidty and structure to the cell. They provide resistance to compression, which is essencial in cartilages and articulations.
So the Proteoglycans in the extracellular matrix of animal tissues allow cartilage to resist compression. OPTION C.
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