Topic 3: Enzymes (CIE A-level Biology)

This lesson bundle contains 6 fully-resourced lessons which have been designed to engage and motivate the students whilst covering the detailed content of topic 3 (Enzymes) in the CIE A-level Biology specification. These globular proteins catalyse biological reactions throughout living organisms so a deep understanding of this topic is important for all of the other 18 topics in this course.

The wide range of activities that are included within the lesson PowerPoints and accompanying resources will cover the following specification points:

• Enzymes are globular proteins that catalyse reactions
• The mode of action of enzymes
• The lock and key hypothesis and the induced-fit model
• The effect of temperature on the rate of an enzyme-catalysed reaction
• The effect of pH on the rate of an enzyme-catalysed reaction
• The effect of enzyme and substrate concentration on the rate of an enzyme-catalysed reaction
• The effect of inhibitor concentration on the rate of an enzyme-catalysed reaction
• The effect of competitive and non-competitive inhibitors on enzyme activity
• Immobilising an enzyme in alginate