Question

of enzymes
this graph shows the effects of an enzyme on a particular reaction. the red line on the graph shows the reaction without the enzyme while the blue line shows how the reaction progresses with the enzyme.

1. according to the graph, the enzyme choose... affect the initial energy of the reactants. the enzyme choose... the activation energy. the overall energy released

Explanation:

Enzymes are biological catalysts. They lower the activation - energy required for a reaction to occur but do not affect the initial energy of reactants or the overall energy released during the reaction. Looking at the graph, the starting energy level of reactants (glucose + O₂) is the same with or without the enzyme, and the overall energy released is also unchanged. The only difference is the height of the energy - barrier (activation energy) which is lower with the enzyme.

Answer:

1. does not
2. lowers