Bone tissue (or osseous tissue) is composed of extracellular collage (a large pr

Question

Bone tissue (or osseous tissue) is composed of extracellular collage (a large protein), mineral (calcium salts and other minerals) and bone cells (i.e. osteocytes). Osteogenesis Imperfecta (OI, aka brittle bone disease) is a congenital bone disorder in which a mutation in the DNA results in a change in one monomer of collagen. Improper formation of collagen fibers leads to an irregular arrangement of osseous tissue. This results in brittle, easily broken bones.

For OI, how is collagen transported across the cell membrane?

Explanation / Answer

in osteogenesis iperfecta collagen is transported across the cell mebrane through the exocytosis

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