Enzymes

• the enzyme is the active site, the substrate is the molecule that fits into the active site
• the enzyme substrate complex is when the enzyme and the substrate bind together. Enzymes are specific to a certain substrate
• at the end of a reaction, you have the enzyme and the product. the enzyme remains unchanged
• high temperatures cause the shape of the enzyme and active site to change, meaning the enzyme can no longer bind with its substrate and no reaction can occur. this is called denaturing
• when the temperature is low, there is no kinetic energy in the molecules so they move less, causing less collision so there are fewer reactions occuring.
• the optimum temperature is the temperature of when the most reactions occur
• the pH in the stomach is low/2 and the pH in the small intestine is 10/high
• the optimum pH varies according to where the enzyme is found