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#ligaments

4 public questions tagged with this topic.

The insoluble, elastic fiber that is a major component of ligaments is:

Collagen is the correct answer as it accurately identifies the biological location, composition, or distribution described in this question. In Protein, the spatial organization and localization of molecules are critical to their function. Collagen is specifically associated with the structure or compartment mentioned because of its unique biochemical properties and physiological role. The other options (Keratin, Elastin, and Fibrillin) are primarily associated with different cellular compartments, tissues, or structural contexts.

Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 4