1. Virulence factors are those attributes of microorganisms thatenable them to cause damage in a host. Some bacteria producehemolysins. Explain what hemolysins are, and indicate whether theywould be classified as virulence factors. Explain why, or why not.1 point
2. Earl says that his unknown is an anaerobe, because results ofhis thioglycollate tube indicate the organism is a facultativeanaerobe. A. Explain how a thioglycolate tube can determineaerotolerance. B. Explain what a facultative anaerobe is, andcomment on Earl’s conclusion. 1 point
