<prompt> Which of the following areis not an activator of alternate complement system?Factor HIgABacteriaToxin  <response>: Ans. a Factor HRef: Robbins 9thpg 162-164The alternative pathway, can be triggered by microbial surface molecules e.g., endotoxin, or LPS, complex polysaccharides, cobra venom, and other substances, in the absence of antibodyFactor I and H inhits complement activation 