The following were obtained in a study of an enzyme known to follow Michaelis-Menten kinetics:   Reaction Velocity (mmol/min) Substrate added (mmol/L) 217 0.8 325 2 433 4 488 6 647 20 652 1000   The Km for this enzyme is approximately _____________. (Round to the nearest integer)

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A:

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Q: 6- 2- 1- 45 90 135 180 225 270 315 360 405 450 495 540 58! [Substrate] (nM) rate (nM/sec) is

A: