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🔴Part 3️⃣ Predicted IGCSE Biology Questions for 2026 Exams 💯 This video covers one of the predicted IGCSE Biology 2026 exam questions on enzymes. You are asked to explain why enzymes are necessary for biological processes. In this short explanation, we focus on the exact exam-marking points students need: • Enzymes are biological catalysts • They speed up chemical reactions • They do this by lowering activation energy • Without enzymes, reactions would occur too slowly to sustain life • Enzyme
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