GCSE Biology - Antibiotic Resistance (2026/27 exams)

⭐️ Check out our website https://www.cognito.org/ ⭐️ ** WHAT'S COVERED ** 1. Definition and role of antibiotics Drugs designed to kill bacteria Example: Penicillin 2. How antibiotic resistance develops Random mutations in bacterial DNA Natural selection favouring resistant bacteria upon antibiotic exposure Survival and reproduction of resistant individuals Formation and spread of antibiotic-resistant strains 3. The concept of 'superbugs' Bacteria resistant to multiple types of antibiotics MRSA as a key example 4. Reasons for the rise in antibiotic resistance Overuse and misuse of antibiotics in human medicine Prescribing antibiotics for non-bacterial infections Widespread use of antibiotics in agriculture and farming 5. Strategies to reduce the spread of resistance Importance of completing the full course of prescribed antibiotics 6. Challenges in overcoming antibiotic resistance Difficulties in the development of new effective antibiotics ** CHAPTERS ** 0:00 Introduction 0:35 How Resistance Develops 2:18 Superbugs and MRSA 2:37 Preventing Resistance: Completing Your Course 3:00 Overuse of Antibiotics 3:58 Developing New Antibiotics: Challenges ** PLAYLISTS **    • GCSE Maths (9-1)      • GCSE Biology (9-1)      • GCSE Chemistry (9-1)      • GCSE Physics (9-1)      • A-Level Biology   #GCSE #Biology #study #revision #school #exam #AQA #OCR #Edexcel #IGCSE