Evidence for Evolution: Resistant Bacteria"

• What should you be able to describe by the end of the video?

  How bacteria become resistant to antibiotics and how to reduce the rate of development of resistant bacteria
• What is the significance of fossils in studying evolution?

  Fossils help us see how different species have evolved over time
• How quickly can bacteria reproduce under ideal conditions?

  Bacteria can reproduce every 30 minutes
• Why can bacteria evolve rapidly?

  Because they can reproduce at a fast rate
• What antibiotic was first used to treat bacterial diseases in the 1940s?

  Penicillin
• What is the role of antibiotics in medicine?

  Antibiotics kill bacteria
• How are antibiotics used in farming?

  To prevent animals from developing bacterial diseases
• What is a common strain of antibiotic-resistant bacteria mentioned?

  MRSA
• What happens to bacteria when an antibiotic is used?

  All bacteria are killed except for the antibiotic-resistant strain
• What is the consequence of antibiotic-resistant bacteria surviving and reproducing?

  The population of the resistant strain rises without competition
• Why is it important to reduce the development of antibiotic-resistant strains?

  Because there is no effective treatment for them
• What are three ways to reduce the development of antibiotic-resistant bacteria?

  • Do not prescribe antibiotics inappropriately
  • Complete the full course of antibiotics
  • Restrict the use of antibiotics in farming
• Why should antibiotics not be used to treat viral infections?

  Because antibiotics have no effect on viruses
• What is the importance of completing a course of antibiotics?

  It ensures all bacteria are killed and none can survive to mutate
• What is a challenge in developing new antibiotics?

  It takes a long time and is extremely expensive
• Why is it unlikely that we can keep up with antibiotic-resistant bacteria?

  Because new antibiotic-resistant bacteria emerge all the time
• What can you find in the revision workbook mentioned in the video?

  • Plenty of questions on antibiotic resistance