<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  Explain the role of enzymes in biological processes. Context: Enzymes play a crucial role in biological processes by speeding up chemical reactions within living organisms.

4. Answer: [/INST]It catalyzes chemical reactions in living organisms by lowering the activation energy required.</s>