Which of the following statements about an animal extracelllar matrix is FALSE?

Question

Which of the following statements about an animal extracelllar matrix is FALSE? Epithelial ECM can be readily modified in response to mechanical stress or other stimuli, but skeletal ECM such as bone is permanent O The meshwork and negative charges provided by proteoglycans can act as filters to regulate which molecules pass through the extracellular medium Proteoglycans attract large amounts of water to create an aqueous gel that allows ECM to provide cushioning O O Extracellular proteases are responsible for processing procollagen to mature collagen fibers, as well as for remodeling the ECM.

Explanation / Answer

The correct option will be

"Epithelial ECM can be readily modified in response to mechanical stress or other stimuli, but skeletal ECM such as bone is permanent".

ECM acts as compression buffer to protect cells by resist external mechanical stress. They can not be readily modified. In case of bone too, they can easily get to their original position once stress is gone.

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