This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology Pa 1 (Gram Positive Cocci, Gram Negative Cocci), Subject name: Microbiology
[{'content': 'Staphylococcus differs from streptococcus by - \nSelect and explain. \nA. Coagulase test, B. Catalase test, C. Phasphatase, D. Gram negative', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Catalase test - To detect the presence of enzyme catalase in a bacterium. Not found in anaerobes. To differentiate staphylococci from streptococci. Catalase +ve = Staphylococcus species * Catalase -ve = Streptococcus species', 'role': 'assistant'}]