Question

question 17

the cell responsible for secreting the matrix of bone is the ______.

a - osteoblast

b - osteocyte

c - chondrocyte

d - osteoclast

Explanation:

Identify the core question

The question asks to identify the specific type of bone cell responsible for secreting the extracellular matrix of bone tissue.

Analyze the role of osteoblasts

Osteoblasts are specialized bone-building cells. They synthesize and secrete the organic components of the bone matrix (osteoid), which mainly consists of collagen fibers, and help initiate the mineralization process.

Analyze the role of osteocytes

Osteocytes are mature bone cells. They develop from osteoblasts that have become trapped within the secreted matrix they deposited. Their primary role is maintaining the bone tissue and sensing mechanical strain.

Analyze the role of chondrocytes

Chondrocytes are cells found in healthy cartilage. They produce and maintain the cartilaginous matrix, not the bone matrix.

Analyze the role of osteoclasts

Osteoclasts are large, multinucleated cells derived from monocytes. Their function is bone resorption, which involves breaking down and dissolving the bone matrix during remodeling.

Answer:

• A - osteoblast (Correct answer)
• B - osteocyte
• C - chondrocyte
• D - osteoclast