Microbiology By which mechanism do fimbriae or pill contribute to pathogenicity? A By which mechanism do fimbriae or pill contribute to pathogenicity? B Bind the Fc potion of IgG molecules C Allow bacterial movement in response to chemotaxis D Allow tight adherence to tissue cells 💡 Explanation By which mechanism do fimbriae or pill contribute to pathogenicity? ✓ Correct Answer: D. Allow tight adherence to tissue cells