Which statement is not correct? 8All enzymes are protein. 8All enzymes break chemicals apart. 8All enzymes are reuseable. 8All enzymes lower activation.

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Presentation transcript:

Which statement is not correct? 8All enzymes are protein. 8All enzymes break chemicals apart. 8All enzymes are reuseable. 8All enzymes lower activation energy 8All enzymes have an active site.

Lactase enzyme testing 8Lactase is supposed to digest the disaccharide LACTOSE into its two monomers, glucose and galactose. 8Lactase can help prevent the discomfort associated with lactose intolerance.

Hydrolysis of Lactose AND LACTOSE Glucose Galactose

Lactase enzyme causes Hydrolysis AND Glucose Galactose Lactase enzyme

Glucose test strips LACTOSE GlucoseGalactose Glucose test strips do not respond to Lactose Glucose test strips change color with Glucose

Let’s experiment with lactase 8Is this enzyme specific? 8Can this enzyme “take the heat?” 8Develop explanations based on evidence! 8Does it digest lactose?

A limitation 8Your boss tells you that you must provide evidence that is INDISPUTABLE or you are fired. Make sure that your tests leave no room for doubt. 8Glucose test strips cost over $6000 each. You had better not use any more than you really need!

Today’s Lab 8Please talk to your lab group and decide on the ONE procedure that your group will use 8Divide responsibilities: 8One person reads directions aloud 8One person gathers equipment 8One person places liquid solutions in spot plate 8One person records the data