It is important for students to remember that enzymes catalyse anabolic or synthetic reactions (building up complex molecules) as well as catabolic or digestive reactions (breaking molecules down into simpler components).
Enzyme-catalysed reactions
Experiment topics
Making a calibration curve for starch concentration
Make a calibration curve for starch using known concentrations of starch and a fixed volume of iodine solution.
View experimentEnzyme-catalysed synthesis
Use an extract from potatoes to catalyse the synthesis of starch and follow the course of the reaction with colorimetry.
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