Enzymes are biological catalysts

Here is an example figure from the textbook demonstrating how enzymes affect reactions. This animation helps the learner understand the physical chemistry of biological reactions.

Figure 8.7. A chemical reaction catalyzed by an enzyme. This animation is a simulation of the synthesis of acetyl-CoA by Carbon Monoxide Dehydrogenase and Acetyl-CoA Synthase. These reactions are part of the Wood–Ljungdahl pathway. In the first panel, set the amount of each substrate (Carbon Dioxide, CFeSP w/ Methyl, and Coenzyme A) using the sliders or the textbox. Click either one of the buttons (Start No Enzymes or Start with Enzymes) to observe the rate of acetyl-CoA synthesis. Note how increasing the concentration of substrate or adding enzymes increases the rate of reaction.