<prompt> Bleomycin toxicity affects which type of cells:Type-I pneumocytesType-II pneumocytesEndothelial cellsPulmonary alveolar macrophages  <response>: Ans. A Type I pneumocytesOncologic Emergencies by Sai Citing p92Bleomycin causes necrosis of Type I pneumocytes that results in compensatory hyperplasia of type-II pneumocytes. Same kind of injury can also occur in response to radiations. In experimental models, this type of injury has been ameliorated by keratinocyte growth factor. 