ABSTRACT
Enzymes are proteins that are folded into a particular shape and have an area called an active site. Enzymes either join two particular molecules together or break a molecule apart into two molecules. This chapter describes the procedure to prove that liver contains an enzyme. This real-world science experiment is structured as a problem-solving activity thus helping KS3 science teachers to engage students effectively in the secondary school classroom. First, background science knowledge for this experiment is provided, along with the learning objectives, list of materials needed for the experiment, safety and technical notes, and a list of engaging activities to be performed by students. Data collection ideas are subsequently provided, together with useful questions to ask the students and also suggestions for homework.
