A-LevelBiologyEnzymesMay/June 2021Paper 2 Q411 Marks
The induced-fit hypothesis and the lock-and-key hypothesis are used to describe the mode of action of enzymes. Radish plants contain the enzyme peroxidase that catalyses the breakdown of hydrogen peroxide. Students investigated the effect of increasing the concentration of hydrogen peroxide on the activity of peroxidase extracted from radish. The results of their investigation are shown in Fig. 4.1. [Figure 4.1]
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