How enzymes work lab

      Results of catalase tests using two Gram positive cocci Bacterial species Bubbling Catalase Test (Positive/Negative) 1 Streptococcus pyogenes 2 Staphylococcus aureus Critical Thinking Questions: 1. What is the purpose of the catalase test? 2. What kind of bacteria produce catalase? 3. Why does a bacterium produce catalase? 4. What are the bubbles observed in a positive reaction? 5. If a bacterial strain is catalase positive, is it always an obligate (strict) aerobe? Explain. 6. If a bacterial strain is catalase negative, is it always an obligate (strict) anaerobe? Explain. 7. If a bacterial strain is an obligate (strict) aerobe but catalase negative, what enzyme does the bacterium may use to detoxify H2O2?