What protein makes tissue soft and elastic?

Study for the Tissue Engineering Exam. Enhance your knowledge with flashcards and multiple choice questions, each with hints and explanations. Prepare effectively for your assessment!

Elastin is a key protein responsible for the elasticity and softness of tissues. It is a crucial component of the extracellular matrix, particularly in structures that require a high degree of flexibility, such as skin, blood vessels, and lungs. Elastin fibers allow these tissues to stretch and then return to their original shape, which is essential for their proper function. The unique molecular structure of elastin, characterized by its ability to cross-link and create a rubber-like elasticity, enables tissues to withstand mechanical stress and maintain their shape during movements.

Other proteins mentioned in the options have distinct roles in tissue structure and function but do not primarily contribute to softening and elastic properties. Fibronectin, for example, plays an important role in cell adhesion and migration, while actin is crucial for cellular movement and maintaining cell shape. Laminin is vital for the integrity of cell membranes and is involved in cell adhesion and signaling, but it does not primarily impart elasticity or softness to tissues.

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