<prompt> All are true about cephalosporins, except-Ceftazidime is a 3rd generation cephalosporinCefoperazone has got antipseudomonal effectCefoxitin has got no activity against anaerobesCephalosporins act by inhibiting cell wall synthesis  <response>: Ans. is c i.e., Cefoxitin has got no activity against anaerobes 