Dental Which of the following is an important constituent of gram-negative microorganisms that contributes to initiation of the host inflammatory response? A Exotoxin B Lipoteichoic acid C Endotoxin D Peptidoglycan 💡 Explanation Which of the following is an important constituent of gram-negative microorganisms that contributes to initiation of the host inflammatory response? ✓ Correct Answer: C. Endotoxin