3- The microenvironment set up by osteoclasts: A. Has a role in resorbing the bone extracellular matrix. B. Is rich in proton H+. C. Is rich in protease. D. Is delimited by a ring of desmosomes. E. Is capable of resorbing the cartilaginous extracellular matrix.
Question
3- The microenvironment set up by osteoclasts: A. Has a role in resorbing the bone extracellular matrix. B. Is rich in proton H+. C. Is rich in protease. D. Is delimited by a ring of desmosomes. E. Is capable of resorbing the cartilaginous extracellular matrix.
Solution
The microenvironment set up by osteoclasts:
A. Has a role in resorbing the bone extracellular matrix - True. Osteoclasts are cells that degrade bone to initiate normal bone remodeling and in response to various signals.
B. Is rich in proton H+ - True. Osteoclasts secrete protons to dissolve the mineralized bone matrix.
C. Is rich in protease - True. Osteoclasts secrete proteases, such as cathepsin K, to degrade the organic bone matrix.
D. Is delimited by a ring of desmosomes - False. The osteoclasts' resorptive activity is delimited by a ring of actin, not desmosomes.
E. Is capable of resorbing the cartilaginous extracellular matrix - False. Osteoclasts are specialized in resorbing bone, not cartilage.
Similar Questions
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