DQuestion 4 3 pts Which of the following is true? You may select more than one.

Question

DQuestion 4 3 pts Which of the following is true? You may select more than one. Beta-hemolytic streptococci causes strep throat. Streptococcus are catalase-negative. Catalase-positive bacteria are more likely to cause disease. O Staphylococcus are catalase-negative. O Catalase-negative bacteria are more likely to cause disease. D | Question 5 1 pts What is the function of the enzyme catalase for bacteria cells? 0 Catalase activates poisonous peroxide radicals, which causes more disease O Catalase deactivates peroxide radicals, which are poisonous. They help minimize tissue damage.

Explanation / Answer

5. Catalase deactivates hydrogen peroxide as it is poisonous to the cell. The catalase decomposes hydrogen peroxide into oxygen and water. Hydrogen peroxide is a harmful byproduct and needs to be converted immediately which is carried out by the catalase enzyme.

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