Enzymes! There are tens of thousands ... book pages and flick them to make an animated diagram. These short films will be relevant for teaching biology and science in general at KS3 and KS4 ...

Scientists first observed the biological phenomenon of restriction and modification in the 1950s, but they did not identify and isolate restriction enzymes until the late 1960s. 3 In 1970, Hamilton ...

pH is a measure of how acidic or alkaline a solution is. The diagram below shows what happens to an enzyme when denaturation occurs. Each enzyme has an optimum pH but it also has a working range ...