IMAT The role of enzymes questions

Sample questions

1. 1IMAT Doutor

   A competitive inhibitor binds reversibly to the active site of an enzyme. Compared with the uninhibited reaction, it:
   1. Alowers Vmax and leaves the apparent Km unchanged
   2. Braises the apparent Km and leaves Vmax unchanged
   3. Clowers both Vmax and the apparent Km
   4. Draises Vmax and lowers the apparent Km
   5. Echanges neither Vmax nor the apparent Km
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2. 2IMAT 2026 Q24

   What is the main function of enzymes in metabolic reactions?
   1. ATo be consumed during the process
   2. BTo be transformed into substrates
   3. CTo increase the reaction temperature
   4. DTo speed up reactions without being consumed
   5. ETo provide chemical energy for the reactions
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