The Enzyme Fumarase Has a PH Optimum of About 7

question 14

Multiple Choice

The enzyme fumarase has a pH optimum of about 7.6.Which of the following would be the buffer of choice to study this enzyme?

• A)tris-hydroxymethyl aminomethane (K_a = 8.32 × 10^-9,pK_a = 8.07)
• B)lactic acid (K_a = 1.38 × 10^-4,pK_a = 3.86)
• C)bicarbonate (K_a = 6.3 × 10^-11,pK_a = 10.24)
• D)acetic acid (K_a = 1.74 × 10^-5,pK_a = 4.76)

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