<prompt> Irradiation can be used to sterilize AE ?Bone graftSutureAificial tissue graftBronchoscope  <response>: Ans. is d i.e., Bronchoscope Endoscops are sterilized by chemical methods :? i Rigid endoscope --- Autoclave ii Flexible endoscope -- Glutaraldehyde Bone tissue graft, and cat gut suture are sterilized by ionizing radiation y - rays 