The Biological Catalyst: What is an Enzyme? скачать в хорошем качестве

The Biological Catalyst: What is an Enzyme?

In this video, we break down exactly how enzymes control the chemical reactions that keep us alive. Whether you're struggling with the "lock and key" model or wondering why temperature and pH matter so much for your GCSE Biology exam, this 4 minute explainer has you covered. We cover all the essentials: What are enzymes? Understanding them as proteins that speed up/catalyse reactions. Structure & Shape: How amino acid chains fold into specific shapes to create the active site. The Lock and Key Model: A simple guide to molecular collisions and enzyme-substrate complexes. Factors affecting activity: Why boiling or changing pH can denature an enzyme and stop it from working. Timestamps: 0:00 - Introduction to Enzymes - the biological catalysts 1:02 - Enzyme Structure (Amino Acids & Folding) 1:45 - The Lock and Key Theory & Active Sites 2:37 - Factors Affecting Enzymes: Temperature & pH 3:33 - Key Points Summary Master your GCSE Biology revision in minutes. Subscribe for more high-impact explainers! #GCSEBiology #Enzymes #BiologyRevision #AQA #Edexcel #ScienceExplained #STEM