The enzyme fumarase catalyzes the hydrolysis of fumarate: fumarate(aq)+h2o(l)→l−malate(aq). the turnover number for this enzyme is 2.5×103s−1, and the michaelis constant is 4.2×10−6m. what is the rate of fumarate conversion if the initial enzyme concentration is 1.0×10−6 m and the fumarate concentration is 1.0×10−4 m ? express your answer with the appropriate units.