Page 178 - PG 101-Course notes مذكرة النظري 24-25 with spec
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Medicinal plants (PG 101)                                        Level 1                              Clinical Pharmacy-PharmD



                                                         (3) Reversibility



                      o  Enzymes catalyze the reaction in both directions.

                      o  e.g.























                                                          (4) Sensitivity


                      o  Due to the protein nature of enzymes, they are sensitive to:



                      (A) Temperature



                                       o
                         ▪  Up to 40 C → their activity potentiated
                                   o
                         ▪  At 50 C → they become inactive
                                       o
                         ▪  At 60-70 C   → they are destroyed
                         ▪  Cooling → inactivates enzymes but this effect is reversible



                   (B) Ultra-violet radiation


                  (C) PH



                  (D) Salt concentration







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