Biological Systems MCAT 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What is the primary function of osteoblasts in the remodeling of bone?

Synthesize bone around it to become osteocytes

The primary function of osteoblasts in the remodeling of bone is to synthesize bone around themselves, which contributes to the formation of new bone tissue. When osteoblasts become embedded in the matrix they secrete, they differentiate into osteocytes, which are mature bone cells that help maintain bone structure and communicate with other bone cells. This process is vital for bone growth and repair, allowing for the remodeling necessary to adapt the skeleton to various stresses and maintain overall bone integrity.

The role of osteoblasts is crucial as they are responsible for the deposition of minerals and the formation of the bone matrix, which is essential for bone health and function. Their activity is balanced by that of osteoclasts, which are responsible for bone resorption, ensuring a dynamic equilibrium in bone remodeling where bone formation and resorption are closely regulated.

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Destroy bone by dissolving hydroxyapatite

Regulate the reabsorption of calcium in the kidneys

Increase the ratio of osteoclast to osteoblast activity

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