Staphylococcus differs from streptococcus by: (A) Coagulase test, (B) Catalase test, (C) Phosphatase, (D) Gram negative
Answer is B. Staphylococcus is catalase positive, unlike streptococci which are catalase negative. Catalase test: positive test indicates production of catalase. Place a loopful of hydrogen peroxide on colonies on the nutrient agar. Prompt effervescence indicates catalase production. Ref: Textbook of Microbiology; Ananthanarayanan and Panicker; 10th Edition: pg;207