1. Would a culture of E.coli make a good bacteriologic control of heat sterilizationtechniques? Why?2. What characteristics of B. stearothermophilus make it valuable for use asa control organism for heat-sterilization techniques? Explain.3. What factors determine the choice of a paper strip containing bacterialendospores or a sealed ampule containing an endospore suspension fortesting heat-sterilization equipment?4. Would you choose a dry-heat oven, an autoclave, or incineration to heatsterilize the following items? State why.Soiled dressings from a surgical wound:Surgical instruments: Clean laboratory glassware: Clean reusable syringes:5. Why should the results of endospore control tests be known before heatsterilizedmaterials are used for patient care?