Cambridge IGCSE Combined Science, topic 5
Enzymes
Enzymes are proteins that speed up the chemical reactions that keep organisms alive. This topic covers what enzymes are, how the shape of the active site explains what they do, and how temperature and pH change their activity. It also covers how to investigate these effects in the laboratory.
Revision notes
Worksheet
FlashcardsSubtopics
Work through them in order. Each one has notes, exam questions and flashcards, and a PDF of each. Subtopics that are not in 0653 are left out.
- 1Enzymes Spec B5.1Enzymes as biological catalysts, the active site and specificity, and how temperature and pH affect enzyme activity.NotesQuestions 5Flashcards 13
Whole topic
When you have done the subtopics: test yourself on everything, or print the lot.