Question

question 25
which of the following cell types is responsible for breaking down bone matrix?
a fibroblast
b chondroblast
c chondroclast
d osteoclast
e osteocyte

Explanation:

• Fibroblasts are involved in producing connective tissue fibers and ground substance, not bone matrix breakdown.
• Chondroblasts are responsible for cartilage matrix synthesis, not bone matrix.
• Chondroclasts break down cartilage matrix, not bone matrix.
• Osteocytes are mature bone cells that maintain bone tissue but do not break down the matrix.
• Osteoclasts are large multinucleated cells that secrete enzymes and acids to resorb (break down) bone matrix.

Answer:

D. osteoclast