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BIO NMDCAT CELL STRUCTURE & FUNCTION
nmdcat.online July 3, 2026

83. The structural component that anchors animal cells to their surrounding extracellular matrix (ECM), bridging internal actin filaments to external fibronectin, is

A. Cadherin
B. Integrin
✓
C. Connexin
D. Tubulin

📝 Explanation

Integrins are transmembrane receptor proteins that link the intracellular cytoskeleton to the extracellular matrix, facilitating cell signaling.

📖 Additional Information

  • Cadherin
  • Integrin
  • Connexin
  • Tubulin

Integrins are transmembrane receptor proteins that link the intracellular cytoskeleton to the extracellular matrix, facilitating cell signaling.

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