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Home Q & A Board Biology-Related Homework Help Biochemistry
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Greenspotsock Greenspotsock
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6 years ago
Carbonic anhydrase has two substrates, carbon dioxide and bicarbonate, which are both converted to carbonic acid. Kinetic data for each is given below. Typical values for Kcat/Km range from less than 1 mM-1sec-1 to as high as 2.8105 mM-1sec-1.
 
  What can be said about the Kcat/Km for CO2?
 
  Substrate Km (mM) Kcat (sec-1) Kcat/Km (m M-1sec-1)
  CO2
  HCO3- 12
  26 1106
  4105 8.3104
  1.5104
   a. carbonic anhydrase binds CO2 well but poorly converts it to carbonic acid
   b. carbonic anhydrase binds CO2 poorly but effectively converts it to carbonic acid
   c. carbonic anhydrase binds CO2 well and converts it to carbonic acid very well
   d. carbonic anhydrase binds CO2 poorly and poorly converts it to carbonic acid
   e. the data above is useless for this question
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megabyte7megabyte7
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#1
6 years ago
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6 years ago
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