Question

Please answer all of those questions

7. Which of the followings is correct about the mechanisms of enzymatic reactions? General acid-base mechanism b. Metal elements mediated mechanism a. Covalent bonding mediated mechanism d. All above c. e. None a bove Which of the followings is correct about the meaning of the constant (Km) of Michaelis-Menten equation of enzyme catalyzed reactions? a. The constant and Michaelis-Menten equation is applicable only to the stage of reaction immediately after mixing of substrate(s) with enzymes b. The constant indicatessubstrate concentration where the reaction speed reaches half of the maximal reaction seep. c. The constant is also a measure of relative rate speeds of the reaction transient complex dissociation and formation 8. d. The constant is equivalent to a measure of enzyme-substrate binding affinity e. All above 9. In asimple Michaelis-Menten type of enzymatic reaction, which of the following parameters is important? Association constant and dissociation constant a. b. Maximal reaction speed Michaelis-Menten constant and substrate concentrations C. d. Enzymatic converting rate e. All above 10. The rate of Michaelis-Menten type enzymatic reaction can be influenced by which of the followings? a. Substrate concentration b. Presence of activators or inhibitors (competitive, non-competitive and uncompetitive) Presence of allostericregulators Temperature, pH values and ionicstrength c. d. e. All above 11. Whathappens to Vmax and Km when a competitive inhibitor is found in an enzyme catalyzed reaction? a. Vmax doesn't change but Km increases b. Vmax increases but Km doesn't change c. Vmax doesn't change and Km doesn't change d. Vmax increasesand Km increases None a bove e.

Answer 1

7.) D---- all above

8.) E---- all above

9.) E---- all above

10.) E---- all above

11.) A---- Vmax doesn't change but Km increases.