Explain what it means for the activation energy to be lowere

Explain what it means for the activation energy to be lowered from 18 to 13 kcal/mol by ferric ions but from 18 to 7 kcal/mol by catalase. Select all that apply. Catalase provides a surface that is less conductive to reaction then ferric ions. Catalase provides a surface that is more conducive to reaction then ferric ions Ferric ions have a surface on which the molecules are positioned such that their reaction is less favorable than when the molecules are present in solution. Ferric ions have a surface on which the molecules are positioned such that their reaction is more favorable than when the molecules are present in solution. Choose two properties of catalase that make it a more suitable intracellular catalyst thin ferric ions. Select all that apply. The active site of the enzyme provides a surface that is very specific for the binding of H_2O_2, decomposition products H_2O and O_2. The active site of the enzyme favors maximally the decomposition of H_2O_2 molecules. The active site of the enzyme provides a surface that is very specific for the binding of H_2O_2 molecules. The enzyme is insensitive to temperature changes.

Solution

Anaswer:

1) Activation energy to be lowered from 18 to 13 kcal/mol by ferric ions , but from 18 to 7 kcal/mol by catalase , as

catalase provide a surface that is more conductive to reaction than ferric ions.

2) The property of catalse that make it a more suitable intracellular catalyst than ferric ions.

as The active site of the enzyme provides a surface that is very specific for the binding of H₂O₂ to give decomposition products i.e H₂O and O_2.

And the active site of the enzyme favours maximally the decomposition of H₂O_{2 molecule}