What is the relationship between the rate of an enzyme reaction and the rate of the corresponding uncatalyzed reaction? do enzymes enhance the rates of slow uncatalyzed reactions as much as they enhance the rates of fast uncatalyzed reactions?

Catalysts are specific to one reaction, meaning a certain type of catalyst will only work with a specific substrate due to the active site of the enzyme Enzymes work by, in some reactions, reducing the amount of activation energy required (minimum amount of energy for the reaction to occur) There are other factors affecting the rate of reaction, including temperature, concentration and others. As all reactions and enzymes are different you can't really say but i think that the answer would be no.

The vascular system