1. Structural Support: It provides tensile strength and structural support to various tissues. 2. Wound Healing: It plays a critical role in the wound healing process by forming a scaffold for new tissue formation. 3. Cell Adhesion: It facilitates cell adhesion and migration, important for tissue repair and morphogenesis. 4. Tissue Rigidity: In bones, it contributes to the rigidity and strength of the skeletal system by forming a matrix that supports mineralization.