<prompt> Following clostridia are saccharolytic except ?WelchiiSporogenesSepticumOedematiens  <response>: Ans. is b i.e., Sporogenes . Clostridia may break down carbohydrate for energy sacchrolytic or break down protein for energy proteolytic or both. Different clostridia have different pattern :- . Both proteolytic and saccharolytic - Predominating proteolytic -- CL sporogenes, Cl botulinum A .B.F., Cl. bifermentans, Cl. histolyticum - Predominating saccharolytic Cl. perfringens, Cl. novyi, CL septicum, Cl. difficile. . Only proteolytic not saccharolytic -- Cl. tetani . Only saccharolytic not proteolytic -- Cl. botulinum C.D.E. . Neither proteolytic nor saccharolytic -- Cl. cochlearum. 